Group Seminars
The group seminars are held on Friday at 11:00 (Brasilia time, GMT-3).
All the seminars are open to the public.
The usual audience varies from about 20 to 40 people.
Currently, due to COVID-19, they are done remotely. The link is sent by e-mail. If interested, please join the mailing list below to receive the link.
To join mailing list, please click here.
It is also possible to follow our seminars from the this calendar.
All the seminars are open to the public.
The usual audience varies from about 20 to 40 people.
Currently, due to COVID-19, they are done remotely. The link is sent by e-mail. If interested, please join the mailing list below to receive the link.
To join mailing list, please click here.
It is also possible to follow our seminars from the this calendar.
- 2020 -
July 31, 2020 - Hermano Velten (UFOP) - No room for dark energy perturbations.
Contrarily to the cosmological constant scenario, dynamical dark energy fields have intrinsic density fluctuations. The evolution of the latter depends on the dark energy speed of sound value remaining very small in quintessence fields since its speed of sound is equal to one. However, there is a long debate in the literature on whether or not dark energy perturbations are (ir-)relevant to large scale structure formation. The goal of this talk is threefold: i) we review the techniques used to study cosmological dark energy perturbations, ii) we discuss some recent results available in the literature and iii) present new own results indicating that the viability of dynamical dark energy fields is challenged.
July 24, 2020 - Leonardo Giani (UFES) - Testing gravity with strong Lensing time delay
In this talk I will briefly discuss how Strong lensing time delay measurements provide a valuable and almost model-independent tool for cosmological investigations. I will also assess their potential for testing fundamental gravity, in particular to measure deviations from the equivalence principle on extragalactic scales. Finally, I will outline some interesting possible future developments.
July 17, 2020 - Kyle Oman (Durham U., UK) - Observational constraints on the slope of the radial acceleration relation at low accelerations (slides)
The radial acceleration relation (RAR) locally relates the `observed' acceleration inferred from the dynamics of a system to the acceleration implied by its baryonic matter distribution. The relation as traced by galaxy rotation curves is one-to-one with remarkably little scatter, implying that the dynamics of a system can be predicted simply by measuring its density profile as traced by e.g. stellar light or gas emission lines. Extending the relation to accelerations below those usually probed by practically observable kinematic tracers is challenging, especially once accounting for faintly emitting baryons, such as the putative warm-hot intergalactic medium, becomes important. We show that in the low-acceleration regime, the (inverted) RAR predicts an unphysical, declining enclosed baryonic mass profile for systems with `observed' acceleration profiles steeper than gobs∝r^−1 (corresponding to density profiles steeper than isothermal - ρ(r)∝r^−2). If the RAR is tantamount to a natural law, such acceleration profiles cannot exist. We apply this argument to test the compatibility of an extrapolation of the rotation curve-derived RAR to low accelerations with data from galaxy-galaxy weak lensing, dwarf spheroidal galaxy stellar kinematic, and outer Milky Way dynamical measurements, fully independent of the uncertainties inherent in direct measurements of the baryonic matter distribution. In all cases we find that the data weakly favour a break to a steeper low-acceleration slope. Improvements in measurements and modelling of the outer Milky Way, and weak lensing, seem like the most promising path toward stronger constraints on the low-acceleration behaviour of the RAR.
July 10, 2020 - Guilherme Brando (UFES) - Correções (Efeitos) relativísticos no crescimento de estruturas em gravitação modificada (slides)
Simulações newtonianas são ferramentas importantes no cenário da cosmologia atual. A partir delas, grandes levantamentos cosmológicos são capazes de simular a formação de estruturas do Universo, em média e pequena escalas, para testar as ferramentas estatísticas da análise dos dados coletados, bem como de calcular observáveis cosmológicos, como o espectro de potência da matéria. No entanto, a teoria gravitacional que descreve o Modelo Padrão Cosmológico é relativística. Sendo assim, é necessário introduzir "correções" relativísticas de espécies com pressão não-nula (fótons, neutrinos, etc.), assim como efeitos da própria estrutura do espaço-tempo (problema do calibre, backreaction), para aumentar a precisão dos levantamentos cosmológicos futuros, uma vez que a Teoria Newtoniana é incapaz de acomodar tais efeitos. Neste seminário será apresentado um método para introduzir essas correções em simulações newtonianas (em ordem linear) para o caso de teorias escalares tensoriais. Será descrito o campo escalar responsável pela atual expansão acelerada do Universo como um fluido efetivo. Este formalismo tem como base fundamental o chamado calibre de N-corpos, um sistema de coordenadas no qual a densidade de partículas Newtoniana é a mesma que a relativística, possibilitando o mapeamento entre a contagem de partículas em cada teoria.
July 03, 2020 - Leonardo Giani (UFES) - O princípio cosmológico, quando e porque
Neste seminário revisarei de maneira pedagógica as motivações teóricas e observacionais por trás de um dos pilares da cosmología moderna, o princípio cosmológico. Em particular tentaremos discutir quando e porque ele se torna uma suposição razoável para a descrição do nosso Universo.
June 26, 2020 - Tays Miranda (UFES) - Colapso estocástico (slides)
Modelos cosmológicos de contração originam flutuações quânticas de vácuo das quais as perturbações primordiais presentes em nosso universo poderiam ser geradas. A existência de uma fase cosmológica antes do Big Bang nos leva a uma perspectiva diferente em relação às condições iniciais para o Universo. Neste seminário, descreveremos um universo em colapso, baseado em um campo escalar com um potencial exponencial, e aplicaremos o formalismo estocástico, o qual nos permite estudar como as flutuações quânticas originam ruídos estocásticos que modificam a dinâmica clássica do campo escalar em largas escalas, acima de uma escala de corte que chamamos de coarse-graining scale. Em particular, vamos explorar como essas flutuações quânticas podem perturbar a equação de estado em largas escalas levando à violação da solução clássica de colapso.
June 19, 2020 - Davi Rodrigues (UFES) - General relativity with running couplings and cosmological implications (slides)
There are currently different frameworks for gravity with running couplings. I will comment on some of them and present our recent results, which are based on possible renormalization group (RG) effects at large scales. Our approach has two key differences with respect to other RG approaches that consider large distances phenomena: i) it is explicitly described by a covariant effective action that contains all the relevant information; ii) the runnings of G and \Lambda are sensitive to the wavenumber k from the cosmological perturbations, not the Hubble parameter or the time since the big bang (as the majority of the approaches consider). Consequently, in this picture, the background evolution is essentially the same of LCDM, the new effects are in the perturbative sector. To disclose its consequences, we evaluate its PPF parameters and f\sigma_8. We comment about a possible impact on alleviating the \sigma_8 tension found in LCDM cosmology. A complete CMB analysis with Class and Monte Python is under evaluation.
June 12, 2020 - Saulo Carneiro (UFBA) - On the value of the Immirzi parameter and the horizon entropy
The absence of driving experimental tests is one of the main challenges for quantum gravity theories. In Loop Quantum Gravity (LQG) the quantisation of General Relativity leads to precise predictions for the eigenvalues of geometrical observables like volume and area, up to the value of the only free parameter in the theory, the Barbero-Immirzi (BI) parameter. With the help of the eigenvalues equation for the area operator, LQG successfully derives the Bekenstein-Hawking entropy of large black holes with isolated horizons, fixing in this limit the BI parameter as γ ≈ 0.274. Any further empirical test should give this same value. In this paper we show that a black hole with angular momentum J =1 and Planck mass is eigenstate of the area operator provided that γ = √3/6 ≈ 1.05 × 0.274. As the black hole is extremal, there is no Hawking radiation and the horizon is isolated. We then show that such a black hole can be formed in the head-on scattering of two parallel Standard Model neutrinos in the mass state m2 (assuming m1 = 0). Furthermore, we use the obtained BI parameter to numerically compute the entropy of isolated horizons with areas ranging up to 250 lP2 , by counting the number of micro-states associated to a given area. The resulting entropy has a leading term S ≈ 0.25 A, in agreement to the Bekenstein-Hawking entropy.
June 5, 2020 - Olesya Galkina (UFES) - Future soft singularities, Born-Infeld-like fields and particles (slides).
We consider different scenarios of the evolution of the universe, where the singularities or some non-analyticities in the geometry of the spacetime are present, trying to answer the following question: is it possible to conserve some kind of notion of particle corresponding to a chosen quantum field present in the universe when the latter approaches the singularity? We study scalar fields with different types of Lagrangians, writing down the second-order differential equations for the linear perturbations of these fields in the vicinity of a singularity. If at least one of two independent solutions has a singular asymptotic behavior, then we cannot define the creation and the annihilation operators and construct the vacuum and the Fock space. This means that the very notion of particle loses sense. In the case of the model of the universe described by the tachyon field with a special trigonometric potential, where the Big Brake singularity occurs, we see that the (pseudo)
tachyon particles do not pass through this singularity. Adding to this model some quantity of dust, we slightly change the characteristics of this singularity and tachyon particles survive. Finally, we consider a model with the scalar field with the cusped potential, where the phantom divide line crossing occurs. Here the particles are well defined in the vicinity of this crossing point.
March 20, 2020 - CANCELED due to COVID19- Tays Miranda de Andrade (UFES) - Stochastic formalism applied to a collapsing universe
Contracting cosmologies give rise to quantum vacuum fluctuations from which the primordial perturbations present in our universe could be generated. The existence of a cosmological phase before the Big Bang leads to a different perspective regarding the initial conditions for the universe. In this talk I will describe a collapsing universe, based on a scalar field and an exponential potential, and apply the stochastic formalism, which allows us to study how quantum fluctuations give rise to stochastic noise which modifies the classical dynamics of the scalar field at large scales, above a coarse-graining scale. In particular I will explore how quantum fluctuations can perturb the equation of state on large scales leading to the break down of the classical collapse solution.
March 12, 2020 - Carla Rodrigues Almeida (Max Planck Institute for the History of Science, Berlin) - Descobrindo os buracos negros
Thursday, at 17:00
Contrarily to the cosmological constant scenario, dynamical dark energy fields have intrinsic density fluctuations. The evolution of the latter depends on the dark energy speed of sound value remaining very small in quintessence fields since its speed of sound is equal to one. However, there is a long debate in the literature on whether or not dark energy perturbations are (ir-)relevant to large scale structure formation. The goal of this talk is threefold: i) we review the techniques used to study cosmological dark energy perturbations, ii) we discuss some recent results available in the literature and iii) present new own results indicating that the viability of dynamical dark energy fields is challenged.
July 24, 2020 - Leonardo Giani (UFES) - Testing gravity with strong Lensing time delay
In this talk I will briefly discuss how Strong lensing time delay measurements provide a valuable and almost model-independent tool for cosmological investigations. I will also assess their potential for testing fundamental gravity, in particular to measure deviations from the equivalence principle on extragalactic scales. Finally, I will outline some interesting possible future developments.
July 17, 2020 - Kyle Oman (Durham U., UK) - Observational constraints on the slope of the radial acceleration relation at low accelerations (slides)
The radial acceleration relation (RAR) locally relates the `observed' acceleration inferred from the dynamics of a system to the acceleration implied by its baryonic matter distribution. The relation as traced by galaxy rotation curves is one-to-one with remarkably little scatter, implying that the dynamics of a system can be predicted simply by measuring its density profile as traced by e.g. stellar light or gas emission lines. Extending the relation to accelerations below those usually probed by practically observable kinematic tracers is challenging, especially once accounting for faintly emitting baryons, such as the putative warm-hot intergalactic medium, becomes important. We show that in the low-acceleration regime, the (inverted) RAR predicts an unphysical, declining enclosed baryonic mass profile for systems with `observed' acceleration profiles steeper than gobs∝r^−1 (corresponding to density profiles steeper than isothermal - ρ(r)∝r^−2). If the RAR is tantamount to a natural law, such acceleration profiles cannot exist. We apply this argument to test the compatibility of an extrapolation of the rotation curve-derived RAR to low accelerations with data from galaxy-galaxy weak lensing, dwarf spheroidal galaxy stellar kinematic, and outer Milky Way dynamical measurements, fully independent of the uncertainties inherent in direct measurements of the baryonic matter distribution. In all cases we find that the data weakly favour a break to a steeper low-acceleration slope. Improvements in measurements and modelling of the outer Milky Way, and weak lensing, seem like the most promising path toward stronger constraints on the low-acceleration behaviour of the RAR.
July 10, 2020 - Guilherme Brando (UFES) - Correções (Efeitos) relativísticos no crescimento de estruturas em gravitação modificada (slides)
Simulações newtonianas são ferramentas importantes no cenário da cosmologia atual. A partir delas, grandes levantamentos cosmológicos são capazes de simular a formação de estruturas do Universo, em média e pequena escalas, para testar as ferramentas estatísticas da análise dos dados coletados, bem como de calcular observáveis cosmológicos, como o espectro de potência da matéria. No entanto, a teoria gravitacional que descreve o Modelo Padrão Cosmológico é relativística. Sendo assim, é necessário introduzir "correções" relativísticas de espécies com pressão não-nula (fótons, neutrinos, etc.), assim como efeitos da própria estrutura do espaço-tempo (problema do calibre, backreaction), para aumentar a precisão dos levantamentos cosmológicos futuros, uma vez que a Teoria Newtoniana é incapaz de acomodar tais efeitos. Neste seminário será apresentado um método para introduzir essas correções em simulações newtonianas (em ordem linear) para o caso de teorias escalares tensoriais. Será descrito o campo escalar responsável pela atual expansão acelerada do Universo como um fluido efetivo. Este formalismo tem como base fundamental o chamado calibre de N-corpos, um sistema de coordenadas no qual a densidade de partículas Newtoniana é a mesma que a relativística, possibilitando o mapeamento entre a contagem de partículas em cada teoria.
July 03, 2020 - Leonardo Giani (UFES) - O princípio cosmológico, quando e porque
Neste seminário revisarei de maneira pedagógica as motivações teóricas e observacionais por trás de um dos pilares da cosmología moderna, o princípio cosmológico. Em particular tentaremos discutir quando e porque ele se torna uma suposição razoável para a descrição do nosso Universo.
June 26, 2020 - Tays Miranda (UFES) - Colapso estocástico (slides)
Modelos cosmológicos de contração originam flutuações quânticas de vácuo das quais as perturbações primordiais presentes em nosso universo poderiam ser geradas. A existência de uma fase cosmológica antes do Big Bang nos leva a uma perspectiva diferente em relação às condições iniciais para o Universo. Neste seminário, descreveremos um universo em colapso, baseado em um campo escalar com um potencial exponencial, e aplicaremos o formalismo estocástico, o qual nos permite estudar como as flutuações quânticas originam ruídos estocásticos que modificam a dinâmica clássica do campo escalar em largas escalas, acima de uma escala de corte que chamamos de coarse-graining scale. Em particular, vamos explorar como essas flutuações quânticas podem perturbar a equação de estado em largas escalas levando à violação da solução clássica de colapso.
June 19, 2020 - Davi Rodrigues (UFES) - General relativity with running couplings and cosmological implications (slides)
There are currently different frameworks for gravity with running couplings. I will comment on some of them and present our recent results, which are based on possible renormalization group (RG) effects at large scales. Our approach has two key differences with respect to other RG approaches that consider large distances phenomena: i) it is explicitly described by a covariant effective action that contains all the relevant information; ii) the runnings of G and \Lambda are sensitive to the wavenumber k from the cosmological perturbations, not the Hubble parameter or the time since the big bang (as the majority of the approaches consider). Consequently, in this picture, the background evolution is essentially the same of LCDM, the new effects are in the perturbative sector. To disclose its consequences, we evaluate its PPF parameters and f\sigma_8. We comment about a possible impact on alleviating the \sigma_8 tension found in LCDM cosmology. A complete CMB analysis with Class and Monte Python is under evaluation.
June 12, 2020 - Saulo Carneiro (UFBA) - On the value of the Immirzi parameter and the horizon entropy
The absence of driving experimental tests is one of the main challenges for quantum gravity theories. In Loop Quantum Gravity (LQG) the quantisation of General Relativity leads to precise predictions for the eigenvalues of geometrical observables like volume and area, up to the value of the only free parameter in the theory, the Barbero-Immirzi (BI) parameter. With the help of the eigenvalues equation for the area operator, LQG successfully derives the Bekenstein-Hawking entropy of large black holes with isolated horizons, fixing in this limit the BI parameter as γ ≈ 0.274. Any further empirical test should give this same value. In this paper we show that a black hole with angular momentum J =1 and Planck mass is eigenstate of the area operator provided that γ = √3/6 ≈ 1.05 × 0.274. As the black hole is extremal, there is no Hawking radiation and the horizon is isolated. We then show that such a black hole can be formed in the head-on scattering of two parallel Standard Model neutrinos in the mass state m2 (assuming m1 = 0). Furthermore, we use the obtained BI parameter to numerically compute the entropy of isolated horizons with areas ranging up to 250 lP2 , by counting the number of micro-states associated to a given area. The resulting entropy has a leading term S ≈ 0.25 A, in agreement to the Bekenstein-Hawking entropy.
June 5, 2020 - Olesya Galkina (UFES) - Future soft singularities, Born-Infeld-like fields and particles (slides).
We consider different scenarios of the evolution of the universe, where the singularities or some non-analyticities in the geometry of the spacetime are present, trying to answer the following question: is it possible to conserve some kind of notion of particle corresponding to a chosen quantum field present in the universe when the latter approaches the singularity? We study scalar fields with different types of Lagrangians, writing down the second-order differential equations for the linear perturbations of these fields in the vicinity of a singularity. If at least one of two independent solutions has a singular asymptotic behavior, then we cannot define the creation and the annihilation operators and construct the vacuum and the Fock space. This means that the very notion of particle loses sense. In the case of the model of the universe described by the tachyon field with a special trigonometric potential, where the Big Brake singularity occurs, we see that the (pseudo)
tachyon particles do not pass through this singularity. Adding to this model some quantity of dust, we slightly change the characteristics of this singularity and tachyon particles survive. Finally, we consider a model with the scalar field with the cusped potential, where the phantom divide line crossing occurs. Here the particles are well defined in the vicinity of this crossing point.
March 20, 2020 - CANCELED due to COVID19- Tays Miranda de Andrade (UFES) - Stochastic formalism applied to a collapsing universe
Contracting cosmologies give rise to quantum vacuum fluctuations from which the primordial perturbations present in our universe could be generated. The existence of a cosmological phase before the Big Bang leads to a different perspective regarding the initial conditions for the universe. In this talk I will describe a collapsing universe, based on a scalar field and an exponential potential, and apply the stochastic formalism, which allows us to study how quantum fluctuations give rise to stochastic noise which modifies the classical dynamics of the scalar field at large scales, above a coarse-graining scale. In particular I will explore how quantum fluctuations can perturb the equation of state on large scales leading to the break down of the classical collapse solution.
March 12, 2020 - Carla Rodrigues Almeida (Max Planck Institute for the History of Science, Berlin) - Descobrindo os buracos negros
Thursday, at 17:00
- 2019 -
November 20, 2019 - Ronaldo Batista (UFRN) - Describing Warm Dark Matter with the Reduced Relativistic Gas
November 01, 2019 - Felipe Santos (UFES) - Cosmological framework for renormalization group extended gravity at the action level
Outubro 30, 2019 - Rodrigo vom Marttens (ON) - On the dark degeneracy and its observational consequences
At: 11:00
October 25, 2019 - Armando Bernui (Observatório Nacional) - Introdução à Radiação Cósmica de Fundo
At: 11:00 & 17:00
October 24, 2019 - Thyrso Villela (INPE) - Programa espacial brasileiro: breve histórico, desafios e oportunidades
At: 11:00
October 18, 2019 - David Camarena (UFES) - Local (re)determination of the Hubble constant assuming only the cosmological principle
October 11, 2019 - José André Lourenço (UFES) - Resurgence Analysis in Quantum Field Theory: Prolegomena
October 04, 2019 - Winfried Zimdahl (UFES) - O que nós (não) sabemos de energia escura (pdf)
September 27, 2019 - Neven Bilic (UFES & Boskovic Inst., Croatia) - Holographic cosmology and tachyon inflation
Friday 11:00
September 18, 2019 - Neven Bilic (UFES & Boskovic Inst., Croatia) - Space and Time in Modern Cosmology
Wednesday 11:00 (Colloquium)
June 14, 2019 - José de Freitas Pacheco (Observatoire de la Côte d'Azur, France) - Efeitos não lineares em configurações bosônicas autogravitantes
June 12, 2019 - José de Freitas Pacheco (Observatoire de la Côte d'Azur, France) - A origem dos elementos e estrelas anãs estranhas
Wednesday at 11:00.
Mai 03, 2019 - Hermano Velten (UFOP) - Diagrama de Hubble de Quasares e a estranha sugestão Omega_m0 ~ 0.4
Friday, at 10:30
Apr 26, 2019 - Kirill Bronnikov (VNIIMS e RUDN, Rússia) - Cylindrical space-times and wormholes
Friday, at 11:00
Apr 12, 2019 - Martin Richarte (UFES) - Wormholes in DGP gravity
Friday, at 11:00
Apr 05, 2019 - Júnior D. Toniato (UFES) - Prelimary results on PPN analisys in Palatini gravity
Friday, at 11:00
Mar 29, 2019 - Vilson Zanchin (UFABC) - Objetos compactos em Relatividade Geral
Friday, at 11:00
Mar 26, 2019 - Luiz Davidovich (UFRJ) - Desafios para a ciência e a tecnologia brasileiras
Tuesday, at 15:00
Mar 26, 2019 - Luiz Davidovich (UFRJ) - Física, informação e as novas tecnologias quânticas
Tuesday, at 11:00
Mar 22, 2019 - Daniela Lázzaro (ON) - OASI: Um observatório no sertão estudando objetos potencialmente perigosos para a
Friday, at 14:00 Terra (Colloquium)
Mar 20, 2019 - Daniela Lázzaro (ON) - Propriedades físicas de pequenos corpos do sistema solar
Wednesday, at 14:00
Mar 13, 2019 - Raissa Mendes (UFF) - De Eddington ao LIGO: 100 anos de testes da Relatividade Geral (Colloquium)
Wednesday, at 11:00
Mar 12, 2019 - Raissa Mendes (UFF) - Estrelas de nêutrons como laboratórios para testar a Relatividade Geral
Tuesday, at 17:00
Feb 14, 2019 - Joseph Buchbinder - One-loop divergences in 6D, N=(1,0) and N=(1,1) supersymmetric gauge theories
(Tomsk State Pedagogical University, Russia)
Feb 06, 2019 - Laerte Sodré (IAG-USP) - Viagens e viajantes na história da Astronomia (Colloquium) - pdf
Wednesday, at 16:00.
November 01, 2019 - Felipe Santos (UFES) - Cosmological framework for renormalization group extended gravity at the action level
Outubro 30, 2019 - Rodrigo vom Marttens (ON) - On the dark degeneracy and its observational consequences
At: 11:00
October 25, 2019 - Armando Bernui (Observatório Nacional) - Introdução à Radiação Cósmica de Fundo
At: 11:00 & 17:00
October 24, 2019 - Thyrso Villela (INPE) - Programa espacial brasileiro: breve histórico, desafios e oportunidades
At: 11:00
October 18, 2019 - David Camarena (UFES) - Local (re)determination of the Hubble constant assuming only the cosmological principle
October 11, 2019 - José André Lourenço (UFES) - Resurgence Analysis in Quantum Field Theory: Prolegomena
October 04, 2019 - Winfried Zimdahl (UFES) - O que nós (não) sabemos de energia escura (pdf)
September 27, 2019 - Neven Bilic (UFES & Boskovic Inst., Croatia) - Holographic cosmology and tachyon inflation
Friday 11:00
September 18, 2019 - Neven Bilic (UFES & Boskovic Inst., Croatia) - Space and Time in Modern Cosmology
Wednesday 11:00 (Colloquium)
June 14, 2019 - José de Freitas Pacheco (Observatoire de la Côte d'Azur, France) - Efeitos não lineares em configurações bosônicas autogravitantes
June 12, 2019 - José de Freitas Pacheco (Observatoire de la Côte d'Azur, France) - A origem dos elementos e estrelas anãs estranhas
Wednesday at 11:00.
Mai 03, 2019 - Hermano Velten (UFOP) - Diagrama de Hubble de Quasares e a estranha sugestão Omega_m0 ~ 0.4
Friday, at 10:30
Apr 26, 2019 - Kirill Bronnikov (VNIIMS e RUDN, Rússia) - Cylindrical space-times and wormholes
Friday, at 11:00
Apr 12, 2019 - Martin Richarte (UFES) - Wormholes in DGP gravity
Friday, at 11:00
Apr 05, 2019 - Júnior D. Toniato (UFES) - Prelimary results on PPN analisys in Palatini gravity
Friday, at 11:00
Mar 29, 2019 - Vilson Zanchin (UFABC) - Objetos compactos em Relatividade Geral
Friday, at 11:00
Mar 26, 2019 - Luiz Davidovich (UFRJ) - Desafios para a ciência e a tecnologia brasileiras
Tuesday, at 15:00
Mar 26, 2019 - Luiz Davidovich (UFRJ) - Física, informação e as novas tecnologias quânticas
Tuesday, at 11:00
Mar 22, 2019 - Daniela Lázzaro (ON) - OASI: Um observatório no sertão estudando objetos potencialmente perigosos para a
Friday, at 14:00 Terra (Colloquium)
Mar 20, 2019 - Daniela Lázzaro (ON) - Propriedades físicas de pequenos corpos do sistema solar
Wednesday, at 14:00
Mar 13, 2019 - Raissa Mendes (UFF) - De Eddington ao LIGO: 100 anos de testes da Relatividade Geral (Colloquium)
Wednesday, at 11:00
Mar 12, 2019 - Raissa Mendes (UFF) - Estrelas de nêutrons como laboratórios para testar a Relatividade Geral
Tuesday, at 17:00
Feb 14, 2019 - Joseph Buchbinder - One-loop divergences in 6D, N=(1,0) and N=(1,1) supersymmetric gauge theories
(Tomsk State Pedagogical University, Russia)
Feb 06, 2019 - Laerte Sodré (IAG-USP) - Viagens e viajantes na história da Astronomia (Colloquium) - pdf
Wednesday, at 16:00.
- 2018 -
Dec 21, 2018 - Carla Almeida (Institute Max Planck, Germany) - Quantização afim da teoria de Brans-Dicke
Dec 14, 2018 - Aneta Wojnar (Postdoc, UFES) - Stellar structure in Palatini gravity
Nov 30, 2018 - Mariniel Galvão (PhD student, UFES)- Análise hamiltoniana da relatividade geral a partir do método simplético
Nov 23, 2018 - Julio Hoff (UNESP - Guaratinguetá) - Mundos brana e dimensões extras
Oct 10, 2018 - Elisabete Dal Pino (IAG/USP) - Particle Acceleration and Gamma-ray (& neutrino emission) Around Black Holes and Relativistic Jets
Oct 09, 2018 - Elisabete Dal Pino (IAG/USP) (Outreach seminar)- Magnetismo Cósmico
Oct 08, 2018 - Elisabete Dal Pino (IAG/USP) - CTA: Cherenkov Telescope Array
Sep 19, 2018 - Luca Amendola (U. of Heidelberg) - Measuring the dark universe: new probes, new windows
Sep 14, 2018 - Alejandro Hernandez-Arboleda (PhD student, UFES) - Variational Principle and Running couplings
Jul 20, 2018 - Wesley Spalenza (IFES) - Gravidade Topológica no Superespaço (D,N) tipo "Shift"
Jun 11, 2018 - Thiago Signori Gonçalves (Observatório do Valongo, UFRJ) - Do rádio ao raio-X: observando a formação e evolução de galáxias em diferentes frequências
Monday at 14:00.
June 08, 2018 - Luis Ureña (Universidad de Guanajuato, México): New general parametrization of quintessence fields and its observational constraints
May 23, 2018 - Gustavo Dotti (Universidade de Córdoba, Argentina) - The Geometry of Black Holes
May 11, 2018 - Kirill Bronikov (VNIIMS) - Nonlinear electrodynamics, regular black holes and wormholes
Apr 27, 2018 - Joseph Buchbinder (Tomsk University, Russia) - Massive antisymmetric tensor field models in curved space-time: effective action and the problem of quantum equivalence.
Note that this seminar shall be delivered at 16.00 instead of the usual time 11.00.
Apr 20, 2018 - Carolina M. S. Barbosa (PhD student, UFES) - Avaliando o impacto de viscosidades de cisalhamento na formação de estruturas em grandes escala
Apr 06, 2018 - Ulysses Camara da Silva (UFES) - Grupo de Renormalização no Espalhamento Aharonov-Bohm
Mar 02, 2018 - Rodrigo vom Marttens (Postdoc, ON) - Cosmology with interaction in the dark sector of the Universe
Fev 27, 2018 - Miguel Quartin (UFRJ) - 1-point lensing statistics in cosmology
(Tuesday, 14:00)
Fev 16, 2018 - Jorge Zanelli (CECS, Chile) - O buraco negro BTZ 25 anos depois
Fev 15, 2018 - Jorge Zanelli (CECS, Chile) - Quantum Cosmic Censorship
(Thursday, 11:00)
Fev 07, 2018 - Ilya Shapiro (UFJF) - Recent progress in fighting ghosts in quantum gravity
(Wednesday, 11:30)
Dec 14, 2018 - Aneta Wojnar (Postdoc, UFES) - Stellar structure in Palatini gravity
Nov 30, 2018 - Mariniel Galvão (PhD student, UFES)- Análise hamiltoniana da relatividade geral a partir do método simplético
Nov 23, 2018 - Julio Hoff (UNESP - Guaratinguetá) - Mundos brana e dimensões extras
Oct 10, 2018 - Elisabete Dal Pino (IAG/USP) - Particle Acceleration and Gamma-ray (& neutrino emission) Around Black Holes and Relativistic Jets
Oct 09, 2018 - Elisabete Dal Pino (IAG/USP) (Outreach seminar)- Magnetismo Cósmico
Oct 08, 2018 - Elisabete Dal Pino (IAG/USP) - CTA: Cherenkov Telescope Array
Sep 19, 2018 - Luca Amendola (U. of Heidelberg) - Measuring the dark universe: new probes, new windows
Sep 14, 2018 - Alejandro Hernandez-Arboleda (PhD student, UFES) - Variational Principle and Running couplings
Jul 20, 2018 - Wesley Spalenza (IFES) - Gravidade Topológica no Superespaço (D,N) tipo "Shift"
Jun 11, 2018 - Thiago Signori Gonçalves (Observatório do Valongo, UFRJ) - Do rádio ao raio-X: observando a formação e evolução de galáxias em diferentes frequências
Monday at 14:00.
June 08, 2018 - Luis Ureña (Universidad de Guanajuato, México): New general parametrization of quintessence fields and its observational constraints
May 23, 2018 - Gustavo Dotti (Universidade de Córdoba, Argentina) - The Geometry of Black Holes
May 11, 2018 - Kirill Bronikov (VNIIMS) - Nonlinear electrodynamics, regular black holes and wormholes
Apr 27, 2018 - Joseph Buchbinder (Tomsk University, Russia) - Massive antisymmetric tensor field models in curved space-time: effective action and the problem of quantum equivalence.
Note that this seminar shall be delivered at 16.00 instead of the usual time 11.00.
Apr 20, 2018 - Carolina M. S. Barbosa (PhD student, UFES) - Avaliando o impacto de viscosidades de cisalhamento na formação de estruturas em grandes escala
Apr 06, 2018 - Ulysses Camara da Silva (UFES) - Grupo de Renormalização no Espalhamento Aharonov-Bohm
Mar 02, 2018 - Rodrigo vom Marttens (Postdoc, ON) - Cosmology with interaction in the dark sector of the Universe
Fev 27, 2018 - Miguel Quartin (UFRJ) - 1-point lensing statistics in cosmology
(Tuesday, 14:00)
Fev 16, 2018 - Jorge Zanelli (CECS, Chile) - O buraco negro BTZ 25 anos depois
Fev 15, 2018 - Jorge Zanelli (CECS, Chile) - Quantum Cosmic Censorship
(Thursday, 11:00)
Fev 07, 2018 - Ilya Shapiro (UFJF) - Recent progress in fighting ghosts in quantum gravity
(Wednesday, 11:30)
- 2017 -
Dez 15, 2017 - Ricardo Mosna (Unicamp) - Analogue model of gravity based on a radial fluid flow: the case of AdS and its deformations
Nov 24, 2017 - Marcos Lima (USP) - Cosmology from structure observables in SDSS and DES
Nov 17, 2017 - Fulvio Sbisá (UFES) - Limite fino do modelo Cascading DGP
Oct 20, 2017 - Eduardo Bragança (UFES) - Condensado Fermiônico e correntes induzidas no espaço-tempo de uma corda cósmica
Oct 06, 2017 - Breno Giacchini (CBPF) - Aspectos fenomenológicos da gravitação com derivadas mais altas
Sep 27, 2017 - Manuel Asorey (Universidad de Zaragoza, Spain) - Ultraviolet problems in QFT and Quantum Gravity
Sep 22, 2017 - Santiago Bergliaffa (UERJ) - Estrelas compactas em teorias f(R) "a la Palatini'
Sep 21, 2017 - Santiago Bergliaffa (UERJ) - Colóquio - Energia Escura
Sep 18, 2017 - José Antônio de Freitas Pacheco (OCA) - Palestra - Black Holes in the Early Universe
Sep 15, 2017 - José Antônio de Freitas Pacheco (OCA) - Regular Primordial Black Holes as Dark Matter
Sep 01, 2017 - Júlio Hoff da Silva (UNESP) - Campos espinoriais com dimensão canônica de massa um
Aug 25, 2017 - Thiago Caramês (UFES) - Gravitational effects of a global monopole
Jul 21, 2017 - Matheus Lazo (FURG) - Formulação lagrangiana para uma gravitação não conservativa
Jul 14, 2017 - Ignácio Bediaga (CBPF) - Evidências experimentais da existência de uma nova dinâmica de produção de assimetria matéria antimatéria.
Jun 23, 2017 - Raquel Fazolo (UFES) - Energia escura não adiabática e formação de estruturas
Jun 09, 2017 - Gabriel Freitas Silva (CBPF) - Renormalização em Bertotti-Robinson via decomposição em modos
Jun 02, 2017 - Carla Almeida (UFES) - Cosmologia quântica em teorias escalares-tensoriais: aspectos matemáticos e físicos
May 26, 2017 - Syrios Gomes (UFES) - Evidência para a expansão acelerada utilizando um indicador independente de modelo
May 19, 2017 - Tiago Castro (UFRJ) - Mini course Python
May 12, 2017 - Nelson Pinto (CBPF) - Mini course
May 05, 2017 - Sergio Joras (UFRJ) - f(R): a tale of two frames
Mar 17, 2017 - Hermano Velten (UFES) - On the cosmological (in)viability of f(R, T) gravity
Mar 09, 2017 (thursday at 11:00) Alexey Starobinsky (L. D. Landau Institute for Theoretical Physics RAS, Russia) - Discovering the history of the Universe and properties of matter before the hot Big Bang
Mar 02, 2017 (thursday at 11:00) David Wands (Institute of Cosmology and Gravitation, Portsmouth, UK) - Cosmic Inflation: Physics at the edge of the universe
Nov 24, 2017 - Marcos Lima (USP) - Cosmology from structure observables in SDSS and DES
Nov 17, 2017 - Fulvio Sbisá (UFES) - Limite fino do modelo Cascading DGP
Oct 20, 2017 - Eduardo Bragança (UFES) - Condensado Fermiônico e correntes induzidas no espaço-tempo de uma corda cósmica
Oct 06, 2017 - Breno Giacchini (CBPF) - Aspectos fenomenológicos da gravitação com derivadas mais altas
Sep 27, 2017 - Manuel Asorey (Universidad de Zaragoza, Spain) - Ultraviolet problems in QFT and Quantum Gravity
Sep 22, 2017 - Santiago Bergliaffa (UERJ) - Estrelas compactas em teorias f(R) "a la Palatini'
Sep 21, 2017 - Santiago Bergliaffa (UERJ) - Colóquio - Energia Escura
Sep 18, 2017 - José Antônio de Freitas Pacheco (OCA) - Palestra - Black Holes in the Early Universe
Sep 15, 2017 - José Antônio de Freitas Pacheco (OCA) - Regular Primordial Black Holes as Dark Matter
Sep 01, 2017 - Júlio Hoff da Silva (UNESP) - Campos espinoriais com dimensão canônica de massa um
Aug 25, 2017 - Thiago Caramês (UFES) - Gravitational effects of a global monopole
Jul 21, 2017 - Matheus Lazo (FURG) - Formulação lagrangiana para uma gravitação não conservativa
Jul 14, 2017 - Ignácio Bediaga (CBPF) - Evidências experimentais da existência de uma nova dinâmica de produção de assimetria matéria antimatéria.
Jun 23, 2017 - Raquel Fazolo (UFES) - Energia escura não adiabática e formação de estruturas
Jun 09, 2017 - Gabriel Freitas Silva (CBPF) - Renormalização em Bertotti-Robinson via decomposição em modos
Jun 02, 2017 - Carla Almeida (UFES) - Cosmologia quântica em teorias escalares-tensoriais: aspectos matemáticos e físicos
May 26, 2017 - Syrios Gomes (UFES) - Evidência para a expansão acelerada utilizando um indicador independente de modelo
May 19, 2017 - Tiago Castro (UFRJ) - Mini course Python
May 12, 2017 - Nelson Pinto (CBPF) - Mini course
May 05, 2017 - Sergio Joras (UFRJ) - f(R): a tale of two frames
Mar 17, 2017 - Hermano Velten (UFES) - On the cosmological (in)viability of f(R, T) gravity
Mar 09, 2017 (thursday at 11:00) Alexey Starobinsky (L. D. Landau Institute for Theoretical Physics RAS, Russia) - Discovering the history of the Universe and properties of matter before the hot Big Bang
Mar 02, 2017 (thursday at 11:00) David Wands (Institute of Cosmology and Gravitation, Portsmouth, UK) - Cosmic Inflation: Physics at the edge of the universe
- 2016 -
Dec 23, 2016 (at 10:00) - Kirill Bronikov (VNIIMS, Russia) - Wormholes and black universes communicated with extra dimensions
Dec 16, 2016 - Kirill Bronikov (VNIIMS, Russia) - The Birkhoff theorem and string clouds
Dec 09, 2016 - Davi Rodrigues (UFES) - Evidences against cuspy dark matter halos in large galaxies
Dec 02, 2016 - Workshop New Physics in Space
Nov 25, 2016 - Nelson Pinto-Neto (CBPF) - Criação de partículas escalares em modelos com ricochete
Nov 18, 2016 - Flavia Sobrera (UFABC) - Dos dados para teoria: Função de Correlação Angular
Nov 11, 2016 - Thiago Caramês (UFES) - Describing the evolution of spherical overdensities using the LTB model
Nov 04, 2016 - Jean Pierre Gazeau (CBPF & Université de Paris VII, France) - Regularizations from affine and Weyl-Heisenberg integral quantizations: applications to the Bianchi IX model
Nov 01, 2016 - Jean Pierre Gazeau (CBPF & Université de Paris VII, France) - From classical to quantum models: the regularising rôle of integrals, symmetry and probabilities (pdf)
Sep 23, 2016 - Antonino del Popolo (Catania U., Italy) - Density profiles of dwarfs and environment (ppt)
Sep 16, 2016 - Vitorio de Lorenci (UNIFEI) - Flutuações do vácuo e um mecanismo de proteção cronológica em espaços com violação de causalidade.
Sep 05, 2016 - Marc Casals (CBPF) - Quantum effects in 2+1-dimensions: from dresses for naked singularities to rotating black hole instabilities
(Monday at 11:00)
Aug 26, 2016 - Álefe O.F. de Almdeida (UFES) - Solar System constraints on Renormalization Group extended General Relativity
Aug 12, 2016 (at 10:00) - Saulo Carneiro (UFBA) - Como e por que testar modelos com interação no setor escuro?
Aug 10, 2016 - Nelson Pinto-Neto (CBPF) - Os 101 anos da Relatividade Geral e o ano 1 das Ondas Gravitacionais
Aug 05, 2016 - Edison de Oliveira Santos (UFES) - Espaços-Tempos Estáticos e Esfericamente Simétricos na Teoria de Rastall Acoplado à um Campo Escalar
Jul 29, 2016 - William C. Algoner Jorge (UFES) - Scalar-Tensor extension of the \Lambda CDM model
Jul 22, 2016 - Rodrigo Von Marttens (UFES) - Formação de estrutura em modelos com energia escura dinâmica
Jul 15, 2016 - Junior Toniato (CBPF) - Ondas Gravitacionais na Gravitação Geométrica - Escalar
Jul 8, 2016 - Dmitry Galtsov (Moscow State University) - Black Holes from Macro to Microcosm
Jul 1, 2016 - Júlio César do Espírito Santo (UFOP) - Mini course
Jun 17, 2016 - Wiliam Hipólito-Ricaldi (UFES-São Mateus) - How could we search for cosmic strings?
Jun 10, 2016 - Álefe O.F. de Almeida (UFES) - A method for evaluating models that use galaxy rotation
curves to derive the density profiles
Jun 03, 2016 - Andre L. A. Lima (UFES) - Universos antes do big-bang e a dualidade do fator de escala
May 20, 2016 - Luciano Casarini (UFES) - PKequal: Accurate non linear matter power spectra with dark energy
May 13, 2016 - Ena Erandy Ramírez Pérez (UFJF) - Exploring the non-linearity of the collapse approach in the context of inflationary cosmology
May 06, 2016 - Samuel Rocha de Oliveira (Unicamp) - Modelos e estudos numéricos de formação de jatos astrofísicos e suas subestruturas a partir dos discos de acréscimo em um Buraco Negro.
Apr 15, 2016 - Odylio Aguiar (INPE) - Primeira Observação de Ondas Gravitacionais e da Fusão de uma Binária de Buracos Negros
Apr 08, 2016 - Carla de Almeida (UFES) - Quantização integral afim e correções semiclássicas
Apr 01, 2016 - Sergio E. C. Jorás (UFRJ) - Correlation of type Ia Supernovae with host galaxies properties
Mar 23, 2016 - Riccardo Sturani (IFT-UNESP) - How LIGO detected gravitational waves
Mar 18, 2016 - Vilson Zanchin (UFABC) - A plethora of relativistic charged spheres: The full spectrum of the Guilfoyle’s solutions
Mar 11, 2016 - Giovanni Marozzi (CBPF) - Relativistic and Newtonian effects in the galaxy number counts bispectrum
Mar 04, 2016 - Fulvio Sbisá (UFES) - Modified gravity and the Cascading DGP model (pdf)
Feb 19, 2016 - Fulvio Sbisá (UFES) - Modified gravity, Massive Gravity and the Cascading DGP model (pdf)
Feb 12, 2016 - Heinrich Steigerwald (UFES) - The growth index of cosmological perturbations and Effective Field Theory
Feb 05, 2016 - Giuseppe Dito (Université de Bourgogne, France) Baker-Campbell-Hausdorff formula and quantization
Dec 16, 2016 - Kirill Bronikov (VNIIMS, Russia) - The Birkhoff theorem and string clouds
Dec 09, 2016 - Davi Rodrigues (UFES) - Evidences against cuspy dark matter halos in large galaxies
Dec 02, 2016 - Workshop New Physics in Space
Nov 25, 2016 - Nelson Pinto-Neto (CBPF) - Criação de partículas escalares em modelos com ricochete
Nov 18, 2016 - Flavia Sobrera (UFABC) - Dos dados para teoria: Função de Correlação Angular
Nov 11, 2016 - Thiago Caramês (UFES) - Describing the evolution of spherical overdensities using the LTB model
Nov 04, 2016 - Jean Pierre Gazeau (CBPF & Université de Paris VII, France) - Regularizations from affine and Weyl-Heisenberg integral quantizations: applications to the Bianchi IX model
Nov 01, 2016 - Jean Pierre Gazeau (CBPF & Université de Paris VII, France) - From classical to quantum models: the regularising rôle of integrals, symmetry and probabilities (pdf)
Sep 23, 2016 - Antonino del Popolo (Catania U., Italy) - Density profiles of dwarfs and environment (ppt)
Sep 16, 2016 - Vitorio de Lorenci (UNIFEI) - Flutuações do vácuo e um mecanismo de proteção cronológica em espaços com violação de causalidade.
Sep 05, 2016 - Marc Casals (CBPF) - Quantum effects in 2+1-dimensions: from dresses for naked singularities to rotating black hole instabilities
(Monday at 11:00)
Aug 26, 2016 - Álefe O.F. de Almdeida (UFES) - Solar System constraints on Renormalization Group extended General Relativity
Aug 12, 2016 (at 10:00) - Saulo Carneiro (UFBA) - Como e por que testar modelos com interação no setor escuro?
Aug 10, 2016 - Nelson Pinto-Neto (CBPF) - Os 101 anos da Relatividade Geral e o ano 1 das Ondas Gravitacionais
Aug 05, 2016 - Edison de Oliveira Santos (UFES) - Espaços-Tempos Estáticos e Esfericamente Simétricos na Teoria de Rastall Acoplado à um Campo Escalar
Jul 29, 2016 - William C. Algoner Jorge (UFES) - Scalar-Tensor extension of the \Lambda CDM model
Jul 22, 2016 - Rodrigo Von Marttens (UFES) - Formação de estrutura em modelos com energia escura dinâmica
Jul 15, 2016 - Junior Toniato (CBPF) - Ondas Gravitacionais na Gravitação Geométrica - Escalar
Jul 8, 2016 - Dmitry Galtsov (Moscow State University) - Black Holes from Macro to Microcosm
Jul 1, 2016 - Júlio César do Espírito Santo (UFOP) - Mini course
Jun 17, 2016 - Wiliam Hipólito-Ricaldi (UFES-São Mateus) - How could we search for cosmic strings?
Jun 10, 2016 - Álefe O.F. de Almeida (UFES) - A method for evaluating models that use galaxy rotation
curves to derive the density profiles
Jun 03, 2016 - Andre L. A. Lima (UFES) - Universos antes do big-bang e a dualidade do fator de escala
May 20, 2016 - Luciano Casarini (UFES) - PKequal: Accurate non linear matter power spectra with dark energy
May 13, 2016 - Ena Erandy Ramírez Pérez (UFJF) - Exploring the non-linearity of the collapse approach in the context of inflationary cosmology
May 06, 2016 - Samuel Rocha de Oliveira (Unicamp) - Modelos e estudos numéricos de formação de jatos astrofísicos e suas subestruturas a partir dos discos de acréscimo em um Buraco Negro.
Apr 15, 2016 - Odylio Aguiar (INPE) - Primeira Observação de Ondas Gravitacionais e da Fusão de uma Binária de Buracos Negros
Apr 08, 2016 - Carla de Almeida (UFES) - Quantização integral afim e correções semiclássicas
Apr 01, 2016 - Sergio E. C. Jorás (UFRJ) - Correlation of type Ia Supernovae with host galaxies properties
Mar 23, 2016 - Riccardo Sturani (IFT-UNESP) - How LIGO detected gravitational waves
Mar 18, 2016 - Vilson Zanchin (UFABC) - A plethora of relativistic charged spheres: The full spectrum of the Guilfoyle’s solutions
Mar 11, 2016 - Giovanni Marozzi (CBPF) - Relativistic and Newtonian effects in the galaxy number counts bispectrum
Mar 04, 2016 - Fulvio Sbisá (UFES) - Modified gravity and the Cascading DGP model (pdf)
Feb 19, 2016 - Fulvio Sbisá (UFES) - Modified gravity, Massive Gravity and the Cascading DGP model (pdf)
Feb 12, 2016 - Heinrich Steigerwald (UFES) - The growth index of cosmological perturbations and Effective Field Theory
Feb 05, 2016 - Giuseppe Dito (Université de Bourgogne, France) Baker-Campbell-Hausdorff formula and quantization
- 2015 -
Dec 18, 2015 - Radouane Gannouji (UCV, Chile) - Mini course
Dec 11, 2015 - Oswaldo Miranda (INPE) - Estrelas de Quarks - Seria Possível Detectá-las?
Dec 04, 2015 - Hermano Velten (UFES) - Velocidade de propagação de ondas gravitacionais e pulsares binários - Parte 2
Nov 20, 2015 - Hermano Velten (UFES) - Velocidade de propagação de ondas gravitacionais e pulsares binários - Parte 1
Nov 13, 2015 - II Workshop de Física Teórica (IFES, Cariacica)
Nov 12, 2015 - Sergio E.C. Jorás (UFRJ) - Stars in modified Gravity Theory
Nov 11, 2015 - Jai-chan Hwang (Kyungpook National University, Republic of Korea) - Cosmological nonlinear density and velocity power spectra
Nov 06, 2015 - Jorge Horvath (IAG-USP) - The masses and radii of neutron stars observed in nature, their description in GR and alternative theories
Oct 23, 2015 - Denis C. Rodrigues (UFES) - Buracos negros escalares
Oct 16, 2015 - Encieh Erfani (IPM, Teerã, Irã) - Inflation and Dark Matter Primordial Black Holes
Oct 09, 2015 - Antonino del Popolo (U. Catania, Italy) - Mini course
Sep 25, 2015 - Nail Khusnutdinov (Universidade Federal de Kazan, Rússia) - Self-interaction force for particle in gravitational fields
Sep 18, 2015 - Oliver Fabio Piattella (UFES) - Lensing in McVittie metric
Sep 11, 2015 - Jean-Pierre Gazeau (APC, Université Denis Diderot, France - CBPF, Rio de Janeiro, Brazil) - Smooth Bouncing from affine quantization
Sep 04, 2015 - João Braga (INPE) - Atividades de Instrumentação em Astrofísica de Altas Energias no INPE
Aug 28, 2015 - Rudnei O. Ramos (UERJ) - Alguns resultados recentes em inflação não isentrópica
Aug 19, 2015 - Mouhamadou Hassirou (Université Abdou Moumouni) - Lightlike submanifolds of Pseudo-Riemannian Poisson manifolds
(Wednesday at 11:00)
Aug 14, 2015 - Alberto Saa (Unicamp) - Mini course
Jul 31, 2015 - Vladimir Strokov (Lebedev Institute, Russia) - Buraco em branco e preto como espaço-tempo com singularidade integrável
Jul 17, 2015 - Adriano Oliveira (IFES & UFES) - Estrelas de Nêutrons em Modelos de Gravidade Alternativos
Jun 26, 2015 - Valerio Marra (UFES) - Coupling dark energy to dark matter perturbations
Jun 12, 2015 - Davi Rodrigues (UFES) - Gravidade escalar-tensorial e Relatividade Geral estendida por Grupo de Renormalização.
Jun 05, 2015 - Holiday
May 29, 2015 - Challenges of New Physics in Space.
May 22, 2015 - Journal Club
May 20, 2015 - Celia Escamilla Rivera (UFES) - Cosmodynamics in Eddington Theory of Gravity
(Wednesday at 11:30)
May 15, 2015 - Celia Escamilla Rivera (UFES) - Cosmodynamics in an accelerated universe: overview
May 13, 2015 - David Wands (Institute of Cosmology and Gravitation, Portsmouth, UK) - Einstein's signature in large-scale structure: non-Gaussianity, scale-dependent bias and GR.
(Wednesday at 15:00)
May 8, 2015 - Second lecture of David Wands's mini-course.
May 7, 2015 - Rámon Herrera (Universidad Católica de Valparaíso, Chile) - Power law inflation with a non-minimally coupled scalar field in light of Planck 2015 data: The exact versus slow roll
(Thursday at 17:00).
May 1, 2015 - Holiday.
Apr 24, 2015 - Glauber Tadaiesky Marques (UFRA) - Dilaton linear com rotação e radiação Hawking
Apr 22, 2015 - Daniel Martin de Blas (UNAB, Chile) - Hybrid quantization fo the Gowdy T^3 model with matter and approximated methods in loop quantum cosmology
Apr 17, 2015 - Black Holes Workshop.
Apr 10, 2015 - Fabio Iocco (IFT-Unesp) - Dark Matter in the Milky Way
Apr 08, 2015 - Oleg B. Zaslavskii (Kharkov U., Ukraine)- Ultra-high energy particle collisions near black hole horizons
(Wednesday, 11:30)
Apr 02, 2015 - Holiday.
Mar 27, 2015 - Kirill Bronnikov (VNIIMS, Russia) - Types of ghosts (visible, invisible and trapped) as sources of wormholes and black universes
Mar 20, 2015 - Miguel Campos (UFRR) - Condensação de matéria.
Mar 13, 2015 - André Lima (UFES) - Universos auto-duais sob inversão do fator de escala
Dec 11, 2015 - Oswaldo Miranda (INPE) - Estrelas de Quarks - Seria Possível Detectá-las?
Dec 04, 2015 - Hermano Velten (UFES) - Velocidade de propagação de ondas gravitacionais e pulsares binários - Parte 2
Nov 20, 2015 - Hermano Velten (UFES) - Velocidade de propagação de ondas gravitacionais e pulsares binários - Parte 1
Nov 13, 2015 - II Workshop de Física Teórica (IFES, Cariacica)
Nov 12, 2015 - Sergio E.C. Jorás (UFRJ) - Stars in modified Gravity Theory
Nov 11, 2015 - Jai-chan Hwang (Kyungpook National University, Republic of Korea) - Cosmological nonlinear density and velocity power spectra
Nov 06, 2015 - Jorge Horvath (IAG-USP) - The masses and radii of neutron stars observed in nature, their description in GR and alternative theories
Oct 23, 2015 - Denis C. Rodrigues (UFES) - Buracos negros escalares
Oct 16, 2015 - Encieh Erfani (IPM, Teerã, Irã) - Inflation and Dark Matter Primordial Black Holes
Oct 09, 2015 - Antonino del Popolo (U. Catania, Italy) - Mini course
Sep 25, 2015 - Nail Khusnutdinov (Universidade Federal de Kazan, Rússia) - Self-interaction force for particle in gravitational fields
Sep 18, 2015 - Oliver Fabio Piattella (UFES) - Lensing in McVittie metric
Sep 11, 2015 - Jean-Pierre Gazeau (APC, Université Denis Diderot, France - CBPF, Rio de Janeiro, Brazil) - Smooth Bouncing from affine quantization
Sep 04, 2015 - João Braga (INPE) - Atividades de Instrumentação em Astrofísica de Altas Energias no INPE
Aug 28, 2015 - Rudnei O. Ramos (UERJ) - Alguns resultados recentes em inflação não isentrópica
Aug 19, 2015 - Mouhamadou Hassirou (Université Abdou Moumouni) - Lightlike submanifolds of Pseudo-Riemannian Poisson manifolds
(Wednesday at 11:00)
Aug 14, 2015 - Alberto Saa (Unicamp) - Mini course
Jul 31, 2015 - Vladimir Strokov (Lebedev Institute, Russia) - Buraco em branco e preto como espaço-tempo com singularidade integrável
Jul 17, 2015 - Adriano Oliveira (IFES & UFES) - Estrelas de Nêutrons em Modelos de Gravidade Alternativos
Jun 26, 2015 - Valerio Marra (UFES) - Coupling dark energy to dark matter perturbations
Jun 12, 2015 - Davi Rodrigues (UFES) - Gravidade escalar-tensorial e Relatividade Geral estendida por Grupo de Renormalização.
Jun 05, 2015 - Holiday
May 29, 2015 - Challenges of New Physics in Space.
May 22, 2015 - Journal Club
May 20, 2015 - Celia Escamilla Rivera (UFES) - Cosmodynamics in Eddington Theory of Gravity
(Wednesday at 11:30)
May 15, 2015 - Celia Escamilla Rivera (UFES) - Cosmodynamics in an accelerated universe: overview
May 13, 2015 - David Wands (Institute of Cosmology and Gravitation, Portsmouth, UK) - Einstein's signature in large-scale structure: non-Gaussianity, scale-dependent bias and GR.
(Wednesday at 15:00)
May 8, 2015 - Second lecture of David Wands's mini-course.
May 7, 2015 - Rámon Herrera (Universidad Católica de Valparaíso, Chile) - Power law inflation with a non-minimally coupled scalar field in light of Planck 2015 data: The exact versus slow roll
(Thursday at 17:00).
May 1, 2015 - Holiday.
Apr 24, 2015 - Glauber Tadaiesky Marques (UFRA) - Dilaton linear com rotação e radiação Hawking
Apr 22, 2015 - Daniel Martin de Blas (UNAB, Chile) - Hybrid quantization fo the Gowdy T^3 model with matter and approximated methods in loop quantum cosmology
Apr 17, 2015 - Black Holes Workshop.
Apr 10, 2015 - Fabio Iocco (IFT-Unesp) - Dark Matter in the Milky Way
Apr 08, 2015 - Oleg B. Zaslavskii (Kharkov U., Ukraine)- Ultra-high energy particle collisions near black hole horizons
(Wednesday, 11:30)
Apr 02, 2015 - Holiday.
Mar 27, 2015 - Kirill Bronnikov (VNIIMS, Russia) - Types of ghosts (visible, invisible and trapped) as sources of wormholes and black universes
Mar 20, 2015 - Miguel Campos (UFRR) - Condensação de matéria.
Mar 13, 2015 - André Lima (UFES) - Universos auto-duais sob inversão do fator de escala
- 2014 -
Dez 19, 2014 - Workshop in Theoretical Physics at IFES, Cariacica. Details here http://wfa.ca.ifes.edu.br.
Dez 12, 2014 - Edison César (UFES) - Câmara CCD e elementos básicos de tratamento de imagens
Dez 05, 2014 - Luiz Alberto Nicolaci da Costa (ON) - The Dark Energy Survey: A Status Report
Nov 21, 2014 - Riccardo Sturani (IFT-Unesp) - Mini course: Effective field theory methods in gravity and cosmology.
Nov 14, 2014 - Júnior Toniato (CBPF) - A teoria geométrica-escalar da gravitação e sua aplicação à cosmologia
Nov 07, 2014 - Laura Pucheu (UFPB) - Teorias escalares tensoriais da Gravitação e geometria de Weyl
Oct 31, 2014 - Oliver Piattella (UFES) - Dark matter particles velocity dispersion
Oct 24, 2014 - Adriano Oliveira (IFES & UFES) - Estrelas de nêutrons em um formalismo Neo-Newtoniano
Oct 17, 2014 - Claudio Germanà (UFMA) - Timing studies of compact objects
Oct 10, 2014 - Horacio Dottori (UFRGS) - A surprendente região nuclear da galáxia M83
Set 26, 2014 - Ulysses Camara (UFES) - Correspondência AdS/CFT e função beta holográfica
Aug 22, 2014 - Thyrso Villela (INPE) - Medidas da CMB e da emissão galáctica em micro-ondas: desafios
Aug 20, 2014 - Filipe Mena (Universidade do Minho, Portugal) - Evolution of gauge invariant perturbations in scalar field cosmologies
(Wednesday, 11:00)
Aug 15, 2014 - Richard Kerner (Université de Paris VI, France) - Time-reparametrization invariance and Hamilton-Jacobi approach
to the cosmological sigma-model
(Friday, 14:00)
Aug 15, 2014 - Davi Rodrigues - Minicurso: sistemas vinculados
Aug 08, 2014 - Davi Rodrigues - Minicurso: sistemas vinculados
Aug 01, 2014 - B. Hartmann Mini course on Anti-de Sitter space-time
Jul 25, 2014 - Raul Abramo (USP) - O Big Bang, a inflação do universo e as ondas gravitacionais
Jul 17, 2014 - B. Hartmann Mini course on Anti-de Sitter space-time
(Thursday, 11:00)
Jun 27, 2014 - Yaser Tavakoli (UFES) - Non-singular black hole formation in quantum gravitational collapse
Jun 13, 2014 - Rodolfo de Freitas (UFES) - Heavy Fields during Inflation: a Universal Bound on Excitations
Jun 11, 2014 - Marcello Musso (Université de Louvain, Bélgica) - Random walks in the sky (remembering your steps!) (pdf)
(Wednesday, 10:00)
May 30, 2014 - Thiago Caramês (UFES) -Colapso esférico em modelos de unificação do setor escuro
May 23, 2014 - José de Freitas Pacheco (OCA) - Quando a vida surgiu no universo?
(Friday, 16:00)
May 23, 2014 - Gastão Lima Neto mini course
(Friday, 11:00)
May 09, 2014 - Challenges in Modern Cosmology: Dark Matter and Dark Energy
Apr 25, 2014 - II Argentinian-Brazilian Meeting on Gravitation, Astrophysics and Cosmology
Apr 18, 2014 - Holiday
Apr 16, 2014 - Henrique de Oliveira (UERJ)- Aspectos de Turbulência de Ondas no Pré-aquecimento
(Wednesday, 11:00)
Apr 11, 2014 - Ioav Waga (UFRJ) - Gama-gravity: uma nova teoria f(R) da gravitação
Apr 04, 2014 - José Geraldo Pereira (IFT-UNESP) - Teleparalelismo: Uma Nova Visão da Gravitação (pdf, mp4)
Mar 28, 2014 - Hermano Velten (UFES) - A Possible Explanation for Phantom Dark Energy (pdf)
Mar 21, 2014 -Sofiane Faci (CBPF) - Constructing conformally invariant equations using Weyl geometry
Mar 19, 2014 - Christian Byrnes (U. of Sussex) - Constraining small scale perturbations: Refining our window on to the early universe
(Wednesday, 11:00)
Mar 14, 2014 - II José Plínio Baptista School of Cosmology
Mar 07, 2014 - Jefferson Morais (UFES) - Dois estudos em gravitação
Fev 28, 2014 - XII Workshop Nova Física no Espaço
Fev 14, 2014 - Bertrand Chauvineau mini course
Fev 07, 2014 - Bertrand Chauvineau mini course
Jan 31, 2014 - Eugênio R. Bezerra de Mello (UFPB) - Efeito Casimir no Espaço-Tempo de uma Corda-Cósmica (ppt)
Jan 24, 2014 - Betti Hartmann (UFES & Jacobs University-Germany) - Stability of black holes and solitons in Anti-de Sitter space-time (pdf)
Jan 22, 2014 - Betti Hartmann (UFES & Jacobs University-Germany) - Cosmic and superconducting strings (pdf)
Dez 12, 2014 - Edison César (UFES) - Câmara CCD e elementos básicos de tratamento de imagens
Dez 05, 2014 - Luiz Alberto Nicolaci da Costa (ON) - The Dark Energy Survey: A Status Report
Nov 21, 2014 - Riccardo Sturani (IFT-Unesp) - Mini course: Effective field theory methods in gravity and cosmology.
Nov 14, 2014 - Júnior Toniato (CBPF) - A teoria geométrica-escalar da gravitação e sua aplicação à cosmologia
Nov 07, 2014 - Laura Pucheu (UFPB) - Teorias escalares tensoriais da Gravitação e geometria de Weyl
Oct 31, 2014 - Oliver Piattella (UFES) - Dark matter particles velocity dispersion
Oct 24, 2014 - Adriano Oliveira (IFES & UFES) - Estrelas de nêutrons em um formalismo Neo-Newtoniano
Oct 17, 2014 - Claudio Germanà (UFMA) - Timing studies of compact objects
Oct 10, 2014 - Horacio Dottori (UFRGS) - A surprendente região nuclear da galáxia M83
Set 26, 2014 - Ulysses Camara (UFES) - Correspondência AdS/CFT e função beta holográfica
Aug 22, 2014 - Thyrso Villela (INPE) - Medidas da CMB e da emissão galáctica em micro-ondas: desafios
Aug 20, 2014 - Filipe Mena (Universidade do Minho, Portugal) - Evolution of gauge invariant perturbations in scalar field cosmologies
(Wednesday, 11:00)
Aug 15, 2014 - Richard Kerner (Université de Paris VI, France) - Time-reparametrization invariance and Hamilton-Jacobi approach
to the cosmological sigma-model
(Friday, 14:00)
Aug 15, 2014 - Davi Rodrigues - Minicurso: sistemas vinculados
Aug 08, 2014 - Davi Rodrigues - Minicurso: sistemas vinculados
Aug 01, 2014 - B. Hartmann Mini course on Anti-de Sitter space-time
Jul 25, 2014 - Raul Abramo (USP) - O Big Bang, a inflação do universo e as ondas gravitacionais
Jul 17, 2014 - B. Hartmann Mini course on Anti-de Sitter space-time
(Thursday, 11:00)
Jun 27, 2014 - Yaser Tavakoli (UFES) - Non-singular black hole formation in quantum gravitational collapse
Jun 13, 2014 - Rodolfo de Freitas (UFES) - Heavy Fields during Inflation: a Universal Bound on Excitations
Jun 11, 2014 - Marcello Musso (Université de Louvain, Bélgica) - Random walks in the sky (remembering your steps!) (pdf)
(Wednesday, 10:00)
May 30, 2014 - Thiago Caramês (UFES) -Colapso esférico em modelos de unificação do setor escuro
May 23, 2014 - José de Freitas Pacheco (OCA) - Quando a vida surgiu no universo?
(Friday, 16:00)
May 23, 2014 - Gastão Lima Neto mini course
(Friday, 11:00)
May 09, 2014 - Challenges in Modern Cosmology: Dark Matter and Dark Energy
Apr 25, 2014 - II Argentinian-Brazilian Meeting on Gravitation, Astrophysics and Cosmology
Apr 18, 2014 - Holiday
Apr 16, 2014 - Henrique de Oliveira (UERJ)- Aspectos de Turbulência de Ondas no Pré-aquecimento
(Wednesday, 11:00)
Apr 11, 2014 - Ioav Waga (UFRJ) - Gama-gravity: uma nova teoria f(R) da gravitação
Apr 04, 2014 - José Geraldo Pereira (IFT-UNESP) - Teleparalelismo: Uma Nova Visão da Gravitação (pdf, mp4)
Mar 28, 2014 - Hermano Velten (UFES) - A Possible Explanation for Phantom Dark Energy (pdf)
Mar 21, 2014 -Sofiane Faci (CBPF) - Constructing conformally invariant equations using Weyl geometry
Mar 19, 2014 - Christian Byrnes (U. of Sussex) - Constraining small scale perturbations: Refining our window on to the early universe
(Wednesday, 11:00)
Mar 14, 2014 - II José Plínio Baptista School of Cosmology
Mar 07, 2014 - Jefferson Morais (UFES) - Dois estudos em gravitação
Fev 28, 2014 - XII Workshop Nova Física no Espaço
Fev 14, 2014 - Bertrand Chauvineau mini course
Fev 07, 2014 - Bertrand Chauvineau mini course
Jan 31, 2014 - Eugênio R. Bezerra de Mello (UFPB) - Efeito Casimir no Espaço-Tempo de uma Corda-Cósmica (ppt)
Jan 24, 2014 - Betti Hartmann (UFES & Jacobs University-Germany) - Stability of black holes and solitons in Anti-de Sitter space-time (pdf)
Jan 22, 2014 - Betti Hartmann (UFES & Jacobs University-Germany) - Cosmic and superconducting strings (pdf)
- 2013 -
Dez 13, 2013 - Nelson Pinto Neto (CBPF) - Equivalência entre o Formalismo de Bardeen e o Formalismo Covariante para as Perturbações Cosmológicas
Dez 12, 2013 - Nivaldo Lemos (UFF) - O que não se expande num universo em expansão: um modelo muito simples
(17:00 Thursday)
Dez 11, 2013 - Kirill Bronnikov (VNIIMS, Russia) - Dilaton gravity, (quasi-)black holes, and scalar charge
(11:00 Wednesday)
Dez 06, 2013 - Daniel Martín-de Blas (UFES) - Cosmologia quântica de laços e quantização híbrida (pdf)
Nov 29, 2013 - João de Mello Neto (UFRJ) - Física e Astrofísica de raios cósmicos de altíssimas energias (pdf)
Nov 28, 2013 - Dionísio Bazeia (UFPB) - Campos Escalares em Ação (pdf)
(17:00 Thursday)
Nov 27, 2013 - Riccardo Sturani (ICTP-Unesp) -Gravitational Waves from coalescing binaries (pdf)
(11:00 Wednesday)
Nov 22, 2013 - Ioav Waga (UFRJ) - Criação de matéria e aceleração cósmica (pdf).
Nov 08, 2013 - Gil de Oliveira Neto (UFJF) - Cosmologia Quântica Aplicada a um Universo com Matéria Rígida e uma Constante Cosmológica Negativa. (pdf)
Nov 01, 2013 - Daniel Martín-de Blas (UFES) - Unicidad en la cuantización de Fock de campos escalares en espaciotiempos cosmológicos
Oct 25, 2013 - Gabriel Luchini (UFES) - Simetrias escondidas em teorias de calibre
Oct 18, 2013 - Mohammad Ali Rajabpour (SISSA - Italy & USP) - Entanglement entropy in long-range harmonic oscillators
Oct 04, 2013 - José de Freitas Pacheco (OCA) - A formação cósmica de estrelas e as erupções gama
Sep 27, 2013 - Rubens Machado (USP) - Simulações de N-corpos em cosmologia (pdf)
(11:00 Friday)
Sep 20, 2013 - Glauber Marques (UFRA) - Métodos de calculo de temperatura para buracos negro (pdf)
(11:00 & 17:00, Friday)
Sep 13, 2013 - Neven Bilic (Rudjer Boskovic Institute - Croatia) - AdS Braneworld with Back Reaction (pdf)
(11:00, Friday)
Sep 06, 2013 - Mario Novello (CBPF) - Teoria geométrica escalar da gravitação
(Cancelled)
Ago 30, 2013 - Gabriel Avossevou (U. Abomey-Calavi, Bénin) - Group Theory and Harmonic Oscillators in the Plane (pdf)
Ago 27, 2013 - Nelson Pinto Neto (CBPF) - Transição do comportamento quântico para o comportamento clássico das perturbações cosmológicas primordiais.(ppt)
(18:00, Tuesday)
Ago 16, 2013 - Hermano Velten (UFES) - Cosmologia com difusão de matéria (pdf)
Ago 09, 2013 - Alberto Saa (Unicamp) -Buracos Negros Acústicos: a nova fronteira experimental da Relatividade Geral
Ago 07, 2013 - Kirill A. Bronnikov (VNIIMS, PFUR - Moscow) - Rotating cylindrical wormholes and energy conditions
(17:00, Wednesday)
Ago 05, 2013 - Kirill A. Bronnikov (VNIIMS, PFUR - Moscow) - Variations of the fine structure constant and the gravitational constant from nonlinear multidimensional gravity
(17:00, Monday)
Ago 02, 2013 - Javier Ramos-Caro (UFScar) - Kinetic Theory of self-gravitating gases in the Post-Newtonian approach: Stationary solutions
Jul 29, 2013 - Ugo Moschella (Insubria, Itália) - Fields and strings on the anti-de Sitter manifold(s)
(17:00, Monday)
Jul 26, 2013 - João Vital Cunha (UFPA) - Vínculando a História da Expansão Cósmica Usando Dados de Idade, Aglomerados e o Parâmetro de Hubble
Jul 19, 2013 - Raul Abramo (USP) - Como explorar mútiplos traçadores das estruturas em grandes escalas em mapas tridimensionais do Universo
Jul 17, 2013 - Raul Abramo (USP) - Cosmologia com mapas 3D do Universo
(18:00, Wednesday)
Jul 05, 2013 - Ronaldo Batista (UFRN) - Efeitos das flutuações de energia escura na formação de estruturas
Jun 28, 2013 - No seminar this day.
Jun 21, 2013 - Thiago Caramês (UFES) - Monopolo Global em teorias f(R) da gravitação
Jun 14, 2013 Alberto Saa (Unicamp) -Buracos Negros Acústicos: a nova fronteira experimental da Relatividade Geral
(Cancelled due to flight delay)
Jun 07, 2013 - Vladimir Strokov (UFES) - Geodesic structure of space-times with integrable singularity and transitions between domains with different signature
May 31, 2013 - CosmoSur II (no seminar this day due to the conference).
May 24, 2013 - Rodrigo Martins (UFES) - Gás de Chaplygin generalizado como resultado da contra-reação das inomogeneidades da matéria cósmica
May 20, 2013 Ronaldo Vieira (Unicamp) - Vertical stability of circular orbits in Newtonian razor-thin disks and modified theories of gravity
(17:00, Monday)
May 17, 2013 - Martin Makler (CBPF) -Sondando o Universo com Lentes Gravitacionais
May 10, 2013 - Rodrigo vom Marttens (UFES) - Perturbações bariônicas no modelo com decaimento do vácuo
May 03, 2013 - No seminar. (V Challenges of New Physics in Space)
Apr 26, 2013 - Gilberto Kremer (UFPR)- Teoria e aplicações da equação de Boltzmann relativista
Apr 19, 2013 - Oliver Piattella (UFES) - Dark Matter particles and their velocity dispersion
Apr 12, 2013 - Davi Rodrigues (UFES) - Dark Matter and General Relativity with Renormalization Group Effects: Kinematics and Lensing of Galaxies
Apr 05, 2013 - Filipe Salles (UFJF) - Anomaly-Induced Effective Action of Gravity and Stability of Classical Solutions (pdf)
Mar 29, 2013 - holiday.
Mar 20, 2013 - Renato Dupke (Observatório Nacional) - Dinâmica dos Aglomerados de Galaxias e o Impacto Cosmológico
Mar 15, 2013 - Carlos Pires (UFPB) - Resultados Recentes do LHC: Higgs e Supersimetria (pdf)
Mar 01, 2013 - Vladimir Lukash (Lebedev Institute, Russia) - Cosmology and White Holes (pdf)
Fev 01, 2013 - Antonino del Popolo (Università de Catania, Italy) -The Cusp/Core Problem and the Secondary Infall Model (ppt)
Jan 25, 2013 - Richard Kerner (Université de Paris VI, France) - Z3 Generalization of Pauli's Principle Applied to Quark States and the Lorentz Invariance (pdf)
Dez 12, 2013 - Nivaldo Lemos (UFF) - O que não se expande num universo em expansão: um modelo muito simples
(17:00 Thursday)
Dez 11, 2013 - Kirill Bronnikov (VNIIMS, Russia) - Dilaton gravity, (quasi-)black holes, and scalar charge
(11:00 Wednesday)
Dez 06, 2013 - Daniel Martín-de Blas (UFES) - Cosmologia quântica de laços e quantização híbrida (pdf)
Nov 29, 2013 - João de Mello Neto (UFRJ) - Física e Astrofísica de raios cósmicos de altíssimas energias (pdf)
Nov 28, 2013 - Dionísio Bazeia (UFPB) - Campos Escalares em Ação (pdf)
(17:00 Thursday)
Nov 27, 2013 - Riccardo Sturani (ICTP-Unesp) -Gravitational Waves from coalescing binaries (pdf)
(11:00 Wednesday)
Nov 22, 2013 - Ioav Waga (UFRJ) - Criação de matéria e aceleração cósmica (pdf).
Nov 08, 2013 - Gil de Oliveira Neto (UFJF) - Cosmologia Quântica Aplicada a um Universo com Matéria Rígida e uma Constante Cosmológica Negativa. (pdf)
Nov 01, 2013 - Daniel Martín-de Blas (UFES) - Unicidad en la cuantización de Fock de campos escalares en espaciotiempos cosmológicos
Oct 25, 2013 - Gabriel Luchini (UFES) - Simetrias escondidas em teorias de calibre
Oct 18, 2013 - Mohammad Ali Rajabpour (SISSA - Italy & USP) - Entanglement entropy in long-range harmonic oscillators
Oct 04, 2013 - José de Freitas Pacheco (OCA) - A formação cósmica de estrelas e as erupções gama
Sep 27, 2013 - Rubens Machado (USP) - Simulações de N-corpos em cosmologia (pdf)
(11:00 Friday)
Sep 20, 2013 - Glauber Marques (UFRA) - Métodos de calculo de temperatura para buracos negro (pdf)
(11:00 & 17:00, Friday)
Sep 13, 2013 - Neven Bilic (Rudjer Boskovic Institute - Croatia) - AdS Braneworld with Back Reaction (pdf)
(11:00, Friday)
Sep 06, 2013 - Mario Novello (CBPF) - Teoria geométrica escalar da gravitação
(Cancelled)
Ago 30, 2013 - Gabriel Avossevou (U. Abomey-Calavi, Bénin) - Group Theory and Harmonic Oscillators in the Plane (pdf)
Ago 27, 2013 - Nelson Pinto Neto (CBPF) - Transição do comportamento quântico para o comportamento clássico das perturbações cosmológicas primordiais.(ppt)
(18:00, Tuesday)
Ago 16, 2013 - Hermano Velten (UFES) - Cosmologia com difusão de matéria (pdf)
Ago 09, 2013 - Alberto Saa (Unicamp) -Buracos Negros Acústicos: a nova fronteira experimental da Relatividade Geral
Ago 07, 2013 - Kirill A. Bronnikov (VNIIMS, PFUR - Moscow) - Rotating cylindrical wormholes and energy conditions
(17:00, Wednesday)
Ago 05, 2013 - Kirill A. Bronnikov (VNIIMS, PFUR - Moscow) - Variations of the fine structure constant and the gravitational constant from nonlinear multidimensional gravity
(17:00, Monday)
Ago 02, 2013 - Javier Ramos-Caro (UFScar) - Kinetic Theory of self-gravitating gases in the Post-Newtonian approach: Stationary solutions
Jul 29, 2013 - Ugo Moschella (Insubria, Itália) - Fields and strings on the anti-de Sitter manifold(s)
(17:00, Monday)
Jul 26, 2013 - João Vital Cunha (UFPA) - Vínculando a História da Expansão Cósmica Usando Dados de Idade, Aglomerados e o Parâmetro de Hubble
Jul 19, 2013 - Raul Abramo (USP) - Como explorar mútiplos traçadores das estruturas em grandes escalas em mapas tridimensionais do Universo
Jul 17, 2013 - Raul Abramo (USP) - Cosmologia com mapas 3D do Universo
(18:00, Wednesday)
Jul 05, 2013 - Ronaldo Batista (UFRN) - Efeitos das flutuações de energia escura na formação de estruturas
Jun 28, 2013 - No seminar this day.
Jun 21, 2013 - Thiago Caramês (UFES) - Monopolo Global em teorias f(R) da gravitação
Jun 14, 2013 Alberto Saa (Unicamp) -Buracos Negros Acústicos: a nova fronteira experimental da Relatividade Geral
(Cancelled due to flight delay)
Jun 07, 2013 - Vladimir Strokov (UFES) - Geodesic structure of space-times with integrable singularity and transitions between domains with different signature
May 31, 2013 - CosmoSur II (no seminar this day due to the conference).
May 24, 2013 - Rodrigo Martins (UFES) - Gás de Chaplygin generalizado como resultado da contra-reação das inomogeneidades da matéria cósmica
May 20, 2013 Ronaldo Vieira (Unicamp) - Vertical stability of circular orbits in Newtonian razor-thin disks and modified theories of gravity
(17:00, Monday)
May 17, 2013 - Martin Makler (CBPF) -Sondando o Universo com Lentes Gravitacionais
May 10, 2013 - Rodrigo vom Marttens (UFES) - Perturbações bariônicas no modelo com decaimento do vácuo
May 03, 2013 - No seminar. (V Challenges of New Physics in Space)
Apr 26, 2013 - Gilberto Kremer (UFPR)- Teoria e aplicações da equação de Boltzmann relativista
Apr 19, 2013 - Oliver Piattella (UFES) - Dark Matter particles and their velocity dispersion
Apr 12, 2013 - Davi Rodrigues (UFES) - Dark Matter and General Relativity with Renormalization Group Effects: Kinematics and Lensing of Galaxies
Apr 05, 2013 - Filipe Salles (UFJF) - Anomaly-Induced Effective Action of Gravity and Stability of Classical Solutions (pdf)
Mar 29, 2013 - holiday.
Mar 20, 2013 - Renato Dupke (Observatório Nacional) - Dinâmica dos Aglomerados de Galaxias e o Impacto Cosmológico
Mar 15, 2013 - Carlos Pires (UFPB) - Resultados Recentes do LHC: Higgs e Supersimetria (pdf)
Mar 01, 2013 - Vladimir Lukash (Lebedev Institute, Russia) - Cosmology and White Holes (pdf)
Fev 01, 2013 - Antonino del Popolo (Università de Catania, Italy) -The Cusp/Core Problem and the Secondary Infall Model (ppt)
Jan 25, 2013 - Richard Kerner (Université de Paris VI, France) - Z3 Generalization of Pauli's Principle Applied to Quark States and the Lorentz Invariance (pdf)
- 2012 -
Dez 19, 2012 - Saulo Carneiro (IF-UFBA) - Modelo cosmológico de concordância com criação de partículas
Dez 12, 2012 - José Alexandre (DF-UFES) - Existe um comprimento mínimo?
Nov 28, 2012 - Aldée Charbonnier (DF-UFES / CBPF) - Morphology of galaxies in the CFHT-stripe 82 survey
Nov 14, 2012 - Morgan LeDelliou (DFM-USP) - Separating expansion (cosmology) from collapse (astrophysics) and generalizing TOV condition in spherically symmetric models with general fluids.
Oct 31, 2012 - Rudnei Ramos (DFT-UERJ) - Bariogênesis através de decaimento de bósons pesados virtuais durante inflação
Oct 10, 2012 - Luciano Casarini (DF-UFES) - Lighting the Dark Universe: exploring its structure formation
Oct 03, 2012 - Winfried Zimdahl (DF-UFES) - Perturbações em modelos dinâmicos de energia escura
Sep 26, 2012 - Alan Toribio (DF-UFES) - Um modelo simples de interação entre matéria bariônica e radiação
Sep 19, 2012 - José Pacheco (OCA/DF-UFES) - Buracos Negros Supermassivos - questões respondidas e questões sem resposta
Sep 05, 2012 - Miguel Quartim (DFM-UFRJ) - Medindo nossa velocidade peculiar com a CMB
Dez 12, 2012 - José Alexandre (DF-UFES) - Existe um comprimento mínimo?
Nov 28, 2012 - Aldée Charbonnier (DF-UFES / CBPF) - Morphology of galaxies in the CFHT-stripe 82 survey
Nov 14, 2012 - Morgan LeDelliou (DFM-USP) - Separating expansion (cosmology) from collapse (astrophysics) and generalizing TOV condition in spherically symmetric models with general fluids.
Oct 31, 2012 - Rudnei Ramos (DFT-UERJ) - Bariogênesis através de decaimento de bósons pesados virtuais durante inflação
Oct 10, 2012 - Luciano Casarini (DF-UFES) - Lighting the Dark Universe: exploring its structure formation
Oct 03, 2012 - Winfried Zimdahl (DF-UFES) - Perturbações em modelos dinâmicos de energia escura
Sep 26, 2012 - Alan Toribio (DF-UFES) - Um modelo simples de interação entre matéria bariônica e radiação
Sep 19, 2012 - José Pacheco (OCA/DF-UFES) - Buracos Negros Supermassivos - questões respondidas e questões sem resposta
Sep 05, 2012 - Miguel Quartim (DFM-UFRJ) - Medindo nossa velocidade peculiar com a CMB
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Website administrators: DC. Rodrigues, V. Marra & OF. Piattella. Contributions: several students and postdocs have helped to expand and maintain the content that can be found here, specially in the organization of the events section, where their corresponding names can be found. Disclamer: Cosmo-ufes is a center ("núcleo") from UFES; this website is maintained by Cosmo-ufes members.