Anisotropic cosmological models in f (G) gravity

被引：0
作者：
Shamir, M. Farasat [1 ]
机构：
[1] Natl Univ Comp & Emerging Sci, Dept Sci & Humanities, Lahore Campus, Lahore, Pakistan
来源：
ASTROPHYSICS AND SPACE SCIENCE | 2016年 / 361卷 / 04期
关键词：
Bianchi type I; f (G) gravity; Exact solutions; PROBE WMAP OBSERVATIONS; UNIVERSE; STABILITY; EQUATION;
D O I：
10.1007/s10509-016-2736-x
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The main objective of this manuscript is to study the anisotropic universe in f (G) Gravity. For this purpose, locally rotationally symmetric Bianchi type I spacetime is considered. A viable f (G) model is used to explore the exact solutions of modified field equations. In particular, two families involving power law and exponential type solutions have been discussed. Some important cosmological parameters are calculated for the obtained solutions. Moreover, energy density and pressure of the universe is analyzed for the model under consideration.
引用
收藏
页数：8
相关论文
共 69 条
[1]   Anisotropic compact stars in f(G) gravity [J].
Abbas, G. ;
Momeni, D. ;
Ali, M. Aamir ;
Myrzakulov, R. ;
Qaisar, S. .
ASTROPHYSICS AND SPACE SCIENCE, 2015, 357 (02)
[2]  
[Anonymous], PHYS REV D
[3]   Do consistent F(R) models mimic general relativity plus Λ? [J].
Appleby, Stephen A. ;
Battye, Richard A. .
PHYSICS LETTERS B, 2007, 654 (1-2) :7-12
[4]   Curing singularities in cosmological evolution of F(R) gravity [J].
Appleby, Stephen A. ;
Battye, Richard A. ;
Starobinsky, Alexei A. .
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2010, (06)
[5]  
Atazadeh K, 2014, GEN RELAT GRAVIT, V46, DOI 10.1007/s10714-014-1664-8
[6]   Bulk viscous LRS Bianchi type V tilted stiff fluid cosmological model in general relativity [J].
Bali, Raj ;
Kumawat, Pramila .
PHYSICS LETTERS B, 2008, 665 (05) :332-337
[7]   Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests [J].
Bamba, Kazuharu ;
Capozziello, Salvatore ;
Nojiri, Shin'ichi ;
Odintsov, Sergei D. .
ASTROPHYSICS AND SPACE SCIENCE, 2012, 342 (01) :155-228
[8]   Equation of state for dark energy in f(T) gravity [J].
Bamba, Kazuharu ;
Geng, Chao-Qiang ;
Lee, Chung-Chi ;
Luo, Ling-Wei .
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2011, (01)
[9]   Finite-time future singularities in modified Gauss-Bonnet and F(R,G) gravity and singularity avoidance [J].
Bamba, Kazuharu ;
Odintsov, Sergei D. ;
Sebastiani, Lorenzo ;
Zerbini, Sergio .
EUROPEAN PHYSICAL JOURNAL C, 2010, 67 (1-2) :295-310
[10]   The future of the universe in modified gravitational theories: approaching a finite-time future singularity [J].
Bamba, Kazuharu ;
Nojiri, Shin'ichi ;
Odintsov, Sergei D. .
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2008, (10)
1234567