| Full text | |
| Author(s): |
Total Authors: 3
|
| Affiliation: | [1] Univ Sao Paulo, Dept Astron, BR-05508900 Sao Paulo - Brazil
[2] Univ Fed Rural Semi Arido, BR-59900000 Pau Dos Ferros, RN - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Classical and Quantum Gravity; v. 31, n. 4 FEB 2014. |
| Web of Science Citations: | 6 |
| Abstract | |
We discuss the cosmological consequences of an interacting model in the dark sector in which the A component evolves as a truncated power series of the Hubble parameter. We also discuss some of the thermodynamic features of this model. In order to constrain the free parameters of the model we carry out a joint statistical analysis involving observational data from current type Ia supernovae, recent estimates of the cosmic microwave background shift parameter and baryon acoustic oscillations measurements. Finally, we adopt a theoretical method to derive the coupled scalar field version for this non-equilibrium decaying vacuum accelerating cosmology. (AU) | |
| FAPESP's process: | 04/13668-0 - Cosmology in the era of precision: dark energy, dark matter and background cosmic radiation |
| Grantee: | Jose Ademir Sales de Lima |
| Support Opportunities: | Research Projects - Thematic Grants |