Gravitation and cosmology: structural questions and applications
X-ray study of the dynamical properties of photometrically selected galaxy clusters
| Full text | |
| Author(s): |
Landim, Ricardo C. G.
Total Authors: 1
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| Document type: | Journal article |
| Source: | EUROPEAN PHYSICAL JOURNAL C; v. 76, n. 9 AUG 31 2016. |
| Web of Science Citations: | 9 |
| Abstract | |
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) | |
| FAPESP's process: | 13/10242-1 - Dark sector’s cosmology and the 21 cm line |
| Grantee: | Ricardo Cesar Giorgetti Landim |
| Support Opportunities: | Scholarships in Brazil - Doctorate |