Ruling out the Modified Chaplygin Gas Cosmologies

Details Ruling out the Modified Chaplygin Gas Cosmologies Ruling out the Modified Chaplygin Gas Cosmologies

2010-07-06

arxiv.org/abs/1007.1011v1

Phys.Lett.B694:289-293,2011

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

Latex file, 7 pages, 6 figures in eps format

Scientific paper

10.1016/j.physletb.2010.10.022

The Modified Chaplygin Gas (MCG) model belongs to the class of a unified models of dark energy (DE) and dark matter (DM). It is characterized by an equation of state (EoS) $p_c = B\rho - A/\rho^{\alpha}$, where the case $B=0$ corresponds to the Generalized Chaplygin Gas (GCG) model. Using a perturbative analysis and power spectrum observational data we show that the MCG model is not a sucessful candidate for the cosmic medium unless $B=0$. In this case, it reduces to the usual GCG model.

Affiliated with

Also associated with

No associations

Rating

Ruling out the Modified Chaplygin Gas Cosmologies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Ruling out the Modified Chaplygin Gas Cosmologies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ruling out the Modified Chaplygin Gas Cosmologies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-344688