Constraining Newtonian stellar configurations in f (R) theories of gravity

被引：24

作者：

Multamaki, T. ^{[1
]}

Vilja, I. ^{[1
]}

机构：

[1] Univ Turku, Dept Phys, FIN-20014 Turku, Finland

来源：

PHYSICS LETTERS B | 2008年 / 659卷 / 05期

基金：

芬兰科学院;

关键词：

D O I：

10.1016/j.physletb.2007.12.022

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider general metric f (R) theories of gravity by solving the field equations in the presence of a spherical static mass distribution by analytical perturbative means. Expanding the held equations systematically in O(G), we solve the resulting set of equations and show that f (R) theories which attempt to solve the dark energy problem very generally lead to gamma PPN = 1/2 in the solar system. This excludes a large class of theories as possible explanations of dark energy. We also present the first order correction to gamma PPN and show that it cannot have a significant effect. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：843 / 846

页数：4

共 43 条

[1] Post-newtonian parameters from alternative theories of gravity [J].

Allemandi, G ;

Francaviglia, M ;

Ruggiero, ML ;

Tartaglia, A .

GENERAL RELATIVITY AND GRAVITATION, 2005, 37 (11) :1891-1904

[2] Accelerated cosmological models in Ricci squared gravity [J].

Allemandi, G ;

Borowiec, A ;

Francaviglia, M .

PHYSICAL REVIEW D, 2004, 70 (10) :103503-1

[3]

[Anonymous], ASTROPH0610854

[4]

APPLEBY SA, ARXIV07053199

[5]

BEAN R, ASTROPH0611321

[6] Curvature quintessence [J].

Capozziello, S .

INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2002, 11 (04) :483-491

[7]

CAPOZZIELLO S, GRQC0603071

[8] Cosmology of generalized modified gravity models - art. no. 065313 [J].

Carroll, SM ;

De Felice, A ;

Duvvuri, V ;

Easson, DA ;

Trodden, M ;

Turner, MS .

PHYSICAL REVIEW D, 2005, 71 (06) :1-11

[9] Is cosmic speed-up due to new gravitational physics? [J].

Carroll, SM ;

Duvvuri, V ;

Trodden, M ;

Turner, MS .

PHYSICAL REVIEW D, 2004, 70 (04)

[10] 1/R gravity and scalar-tensor gravity [J].

Chiba, T .

PHYSICS LETTERS B, 2003, 575 (1-2) :1-3

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