In this work we test a cosmological model with an interaction between dark energy and dark matter, where a tachyon scalar field plays the role of dark energy. With that in mind, we developed a numerical code that solves the background equations and extracts the cosmological parameters and we compared the results of the interacting tachyon model with those of other dark energy candidates. Our results show that the model indeed explains the observational data and has interesting cosmological properties, but might face challenges when compared to other dark energy candidates.Neste trabalho testamos um modelo cosmológico com uma interação entre energia escura e matéria escura, onde um campo escalar taquiônico desempenha o papel da energia escur...
We present a detailed study of cosmological effects of homogeneous tachyon matter coexisting with no...
In the present work we study a dark energy model in which a non-linear scalar field (tachyon) with a...
Modelos cosmológicos envolvendo campos escalares permitem a descrição de uma fase de expansão cósmic...
In this thesis we go beyond the standard cosmological LCDM model and study the effect of an interact...
Analisamos um modelo de quintessência acoplada para a energia escura à luz da teoria dos sistemas di...
In this work we extend the first order formalism for cosmological models that present an interaction...
A cosmological model for the present Universe is analyzed whose constituents are a non-interacting b...
We discuss an interacting tachyonic dark energy model in the context of the holographic principle. T...
Neste trabalho foi investigada a possibilidade de haver uma interação entre a energia e a matéria es...
Neste trabalho, estudamos modelos cosmológicos em que a energia escura foi tratada como um campo de ...
Modern Cosmology offers us a great understanding of the universe with striking precision, made possi...
We propose a holographic tachyon model of dark energy with interaction between the components of the...
Late-time cosmic acceleration is one of the most interesting unsolved puzzles in modern cosmology. T...
4 pags., 2 figs. -- Spanish Relativity Meeting (ERE2009) 7–11 September 2009, Bilbao, SpainWe propos...
AbstractScalar-field dark energy models for tachyon fields are often regarded as an effective descri...
We present a detailed study of cosmological effects of homogeneous tachyon matter coexisting with no...
In the present work we study a dark energy model in which a non-linear scalar field (tachyon) with a...
Modelos cosmológicos envolvendo campos escalares permitem a descrição de uma fase de expansão cósmic...
In this thesis we go beyond the standard cosmological LCDM model and study the effect of an interact...
Analisamos um modelo de quintessência acoplada para a energia escura à luz da teoria dos sistemas di...
In this work we extend the first order formalism for cosmological models that present an interaction...
A cosmological model for the present Universe is analyzed whose constituents are a non-interacting b...
We discuss an interacting tachyonic dark energy model in the context of the holographic principle. T...
Neste trabalho foi investigada a possibilidade de haver uma interação entre a energia e a matéria es...
Neste trabalho, estudamos modelos cosmológicos em que a energia escura foi tratada como um campo de ...
Modern Cosmology offers us a great understanding of the universe with striking precision, made possi...
We propose a holographic tachyon model of dark energy with interaction between the components of the...
Late-time cosmic acceleration is one of the most interesting unsolved puzzles in modern cosmology. T...
4 pags., 2 figs. -- Spanish Relativity Meeting (ERE2009) 7–11 September 2009, Bilbao, SpainWe propos...
AbstractScalar-field dark energy models for tachyon fields are often regarded as an effective descri...
We present a detailed study of cosmological effects of homogeneous tachyon matter coexisting with no...
In the present work we study a dark energy model in which a non-linear scalar field (tachyon) with a...
Modelos cosmológicos envolvendo campos escalares permitem a descrição de uma fase de expansão cósmic...