Modified Chaplygin gas in Horava-Lifshitz gravity and constraints on its B parameter

Details Modified Chaplygin gas in Horava-Lifshitz gravity and constraints on its B parameter Modified Chaplygin gas in Horava-Lifshitz gravity and constraints on its B parameter

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012phrvd..85b4039p&link_type=abstract

Physical Review D, vol. 85, Issue 2, id. 024039

Mathematics

Logic

Classical General Relativity, Mathematical And Relativistic Aspects Of Cosmology, Cosmology

Scientific paper

We present cosmological models with modified Chaplygin gas (MCG) in the framework of Horava-Lifshitz (HL) theory of gravity. The equation of state (EOS) for a MCG is a three-variable equation determined by A, α, B. The allowed values of these parameters of the EOS are determined using the recent astrophysical and cosmological observational data. For this we consider H(z)-z, BAO peak, CMB shift parameter data to obtain a suitable range of values of the parameters for a viable cosmological model. Considering the suitable range of effective neutrino parameter (ΔNν), the ranges of values of the B-parameter along with AS (defined by A, α, and B) and α are determined here by chi-square minimization.

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