Observational data fitting to constrain Variable Modified Chaplygin Gas in the background of Horava-Lifshitz Gravity

Abstract

FRW universe in Horava-Lifshitz (HL) gravity model filled with a combination of dark matter and dark energy in the form of variable modified Chaplygin gas (VMCG) is considered. The permitted values of the VMCG parameters are determined by the recent astrophysical and cosmological observational data. Here we present the Hubble parameter in terms of the observable parameters ${\Omega }_{dm0}$, ${\Omega }_{vmcg0}$, $H_0$, redshift $z$ and other parameters like $\alpha$, $A$, $\gamma$ and $n$. From Stern data set (12 points), we have obtained the bounds of the arbitrary parameters by minimizing the ${\chi }^2$ test. The best-fit values of the parameters are obtained by 66\%, 90\% and 99\% confidence levels. Next due to joint analysis with BAO and CMB observations, we have also obtained the bounds of the parameters ($A,\gamma$) by fixing some other parameters $\alpha$ and $n$. The best fit value of distance modulus $\mu (z)$ is obtained for the VMCG model in HL gravity, and it is concluded that our model is perfectly consistent with the union2 sample data.

10 pages, 4 figures, Accepted for publication in Int. J. Theor. Phys. arXiv admin note: substantial text overlap with arXiv:1304.6713, arXiv:1406.3043, arXiv:1206.0507; text overlap with arXiv:1312.1049, arXiv:1211.2783, arXiv:1310.2144 by other authors

References in corpus (13)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Quantum Gravity at a Lifshitz Point
• Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
• Spectra and Light Curves of Six Type Ia Supernovae at 0.511 < z < 1.12 and the Union2 Compilation
• Membranes at Quantum Criticality
• Solutions to Horava Gravity
• Cosmology of the Lifshitz universe
• Dynamical Scalar Degree of Freedom in Horava-Lifshitz Gravity
• Interacting Modified Variable Chaplygin Gas in Non-flat Universe
• New agegraphic dark energy in Horava-Lifshitz cosmology
• Wormholes supported by phantom-like modified Chaplygin gas
• Interacting modified Chaplygin gas in loop quantum cosmology
• Observational Constraints of Modified Chaplygin Gas in Loop Quantum Cosmology

Cited by in corpus (4)

• Gravitational Baryogenesis in Ho$\check{r}$ava-Lifshitz gravity
• Cosmology of the interacting Tsallis holographic dark energy in $f(R,T)$ gravity framework
• A comprehensive analysis of Barrow holographic Chaplygin gas model reconstruction and its cosmological consequences
• Causal cosmology with braneworld gravity including Gauss Bonnet coupling