A no-go theorem for polytropic spheres in Palatini f(R) gravity

被引：107

作者：

Barausse, Enrico ^{[1
,2
]}

Sotiriou, Thomas P. ^{[1
,2
,3
]}

Miller, John C. ^{[1
,2
,4
]}

机构：

[1] SISSA, Int Sch Adv Studies, I-34014 Trieste, Italy

[2] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy

[3] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[4] Univ Oxford, Dept Phys Astrophys, Oxford OX1 3RH, England

来源：

CLASSICAL AND QUANTUM GRAVITY | 2008年 / 25卷 / 06期

关键词：

D O I：

10.1088/0264-9381/25/6/062001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Non-vacuum static spherically symmetric solutions in Palatini f(R) gravity are examined. It is shown that for generic choices of f(R), there are commonly used equations of state for which no satisfactory physical solution of the field equations can be found within this framework, apart from in the special case of general relativity, casting doubt on whether Palatini f(R) gravity can be considered as giving viable alternatives to general relativity.

引用

页数：7

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