| Автор | Júlio C. Fabris |
| Автор | Bernardo Fraga |
| Автор | Nelson Pinto-Neto |
| Автор | Winfried Zimdahl |
| Дата выпуска | 2010-04-01 |
| dc.description | Recent investigations seem to favor a cosmological dynamics according to which the accelerated expansion of the Universe may have already peaked and is now slowing down again [1]. As a consequence, the cosmic acceleration may be a transient phenomenon. We investigate a toy model that reproduces such a background behavior as the result of a time-dependent coupling in the dark sector which implies a cancelation of the ``bare" cosmological constant. With the help of a statistical analysis of Supernova Type Ia (SNIa) data we demonstrate that for a certain parameter combination a transient accelerating phase emerges as a pure interaction effect. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Transient cosmic acceleration from interacting fluids |
| Тип | paper |
| DOI | 10.1088/1475-7516/2010/04/008 |
| Electronic ISSN | 1475-7516 |
| Журнал | Journal of Cosmology and Astroparticle Physics |
| Том | 2010 |
| Первая страница | 8 |
| Последняя страница | 008 |
| Выпуск | 04 |
