Stability of the Einstein static universe in modified Gauss-Bonnet gravity

被引：74

作者：

Boehmer, Christian G. ^{[1
,2
]}

Lobo, Francisco S. N. ^{[3
]}

机构：

[1] UCL, Dept Math, London WC1E 6BT, England

[2] UCL, Inst Origins, London WC1E 6BT, England

[3] Univ Lisbon, Ctr Astron & Astrofis, P-1749016 Lisbon, Portugal

来源：

PHYSICAL REVIEW D | 2009年 / 79卷 / 06期

关键词：

PROBE WMAP OBSERVATIONS; COSMOLOGICAL CONSTANT; DARK ENERGY; SINGULARITY;

D O I：

10.1103/PhysRevD.79.067504

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyze the stability of the Einstein static universe by considering linear homogeneous perturbations in the context of f(G) modified Gauss-Bonnet theories of gravity. By considering a generic form of f(G), the stability region of the Einstein static universe is parametrized by the linear equation of state parameter w=p/rho and the second derivative f('')(G) of the Gauss-Bonnet term.

引用

页数：4

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