Horava-Lifshitz cosmology with generalized Chaplygin gas

被引：25

作者：

Ali, Amna ^{[1
]}

Dutta, Sourish ^{[2
,4
]}

Saridakis, Emmanuel N. ^{[3
]}

Sen, Anjan A. ^{[1
]}

机构：

[1] Jamia Millia Islamia, Ctr Theoret Phys, New Delhi 110025, India

[2] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA

[3] Chongqing Univ Posts & Telecommun, Coll Math & Phys, Chongqing 400065, Peoples R China

[4] Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA

来源：

GENERAL RELATIVITY AND GRAVITATION | 2012年 / 44卷 / 03期

关键词：

Horava-Lifshitz; Cosmology; Chaplygin gas; Dark energy; DARK ENERGY; PRIMORDIAL NUCLEOSYNTHESIS; ELECTROWEAK BARYOGENESIS; SUPERNOVA DATA; UNIFICATION; CONSTRAINTS; MATTER;

D O I：

10.1007/s10714-011-1298-z

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate cosmological scenarios of generalized Chaplygin gas in a universe governed by HoA (TM) ava-Lifshitz gravity. We consider both the detailed and non-detailed balance versions of the gravitational background, and we include the baryonic matter and radiation sectors. We use observational data from Type Ia Supernovae, Baryon Acoustic Oscillations, and Cosmic Microwave Background, along with requirements of Big Bang Nucleosynthesis, to constrain the parameters of the model, and we provide the corresponding likelihood contours. We deduce that the present scenario is compatible with observations. Additionally, examining the evolution of the total equation-of-state parameter, we find in a unified way the succession of the radiation, matter, and dark energy epochs, consistently with the thermal history of the universe.

引用

页码：657 / 683

页数：27

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