Testando Física fundamental com grandes levantamentos cosmológicos
Estudo em raios-X das propriedades dinâmicas de aglomerados de galáxias selecionad...
Testando Física Fundamental com grandes levantamentos cosmológicos
| Texto completo | |
| Autor(es): |
Landim, Ricardo C. G.
Número total de Autores: 1
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| Tipo de documento: | Artigo Científico |
| Fonte: | EUROPEAN PHYSICAL JOURNAL C; v. 76, n. 9 AUG 31 2016. |
| Citações Web of Science: | 9 |
| Resumo | |
In this paper we perform a dynamical analysis for a vector field as a candidate for the dark energy, in the presence of a barotropic fluid. The vector is one component of the so-called cosmic triad, which is a set of three identical copies of an abelian field pointing mutually in orthogonal directions. In order to generalize the analysis, we also assumed the interaction between dark energy and the barotropic fluid, with a phenomenological coupling. Both matter and dark energy eras can be successfully described by the critical points, indicating that the dynamical system theory is a viable tool to analyze asymptotic states of such cosmological models. (AU) | |
| Processo FAPESP: | 13/10242-1 - Cosmologia do setor escuro e a linha de 21 cm |
| Beneficiário: | Ricardo Cesar Giorgetti Landim |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |