Transient acceleration from a hybrid Chaplygin gas
Astrophysics
2009-11-10 v4 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We extend the Chaplygin gas model for dark matter and dark energy unification by promoting the Chaplygin gas parameter A to the potential for an extra scalar with canonical kinetic energy. The hybrid model allows for accelerated Hubble expansion to be a transient effect around redshift zero.
Keywords
Cite
@article{arxiv.astro-ph/0503428,
title = {Transient acceleration from a hybrid Chaplygin gas},
author = {Neven Bilic and Gary B. Tupper and Raoul D. Viollier},
journal= {arXiv preprint arXiv:astro-ph/0503428},
year = {2009}
}
Comments
8 pages, 3 figures, title changed, discussion expanded, typos corrected, references added, results unchanged