Constraints on a new alternative model to dark energy
General Relativity and Quantum Cosmology
2009-11-10 v3 Astrophysics
Abstract
The recent type Ia supernova data suggest that the universe is accelerating now and decelerated in recent past. This may provide the evidence that the standard Friedmann equation needs to be modified. We analyze in detail a new model in the context of modified Friedmann equation using the supernova data published by the High- Supernova Search Team and the Supernova Cosmology Project. The new model explains recent acceleration and past deceleration. Furthermore, the new model also gives a decelerated universe in the future.
Cite
@article{arxiv.gr-qc/0402031,
title = {Constraints on a new alternative model to dark energy},
author = {Yungui Gong and Xi-Ming Chen},
journal= {arXiv preprint arXiv:gr-qc/0402031},
year = {2009}
}
Comments
12 pages, 5 figures, use ws-ijmpd, minor changes made. In the new version, a detailed derivation of the model is given