Cardassian Universe Constrained by Latest Observations
Cosmology and Nongalactic Astrophysics
2014-11-20 v1 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
Several Cardassian universe models including the original, modified polytropic and exponential Cardassian models are constrained by the latest Constitution Type Ia supernova data, the position of the first acoustic peak of CMB from the five years WMAP data and the size of baryonic acoustic oscillation peak from the SDSS data. Both the spatial flat and curved universe are studied, and we also take account of the possible bulk viscosity of the matter fluid in the flat universe case.
Keywords
Cite
@article{arxiv.0912.4793,
title = {Cardassian Universe Constrained by Latest Observations},
author = {Chao-Jun Feng and Xin-Zhou Li},
journal= {arXiv preprint arXiv:0912.4793},
year = {2014}
}
Comments
10 pages, 3 figures