Relativistic stars in f(r) gravity, and absence thereof

Tsutomu Kohayashi; Kei Ichi Maeda

Relativistic stars in f(r) gravity, and absence thereof

Tsutomu Kohayashi, Kei Ichi Maeda

先進理工学部

研究成果: Paper › 査読

抄録

Several f(R) modified gravity models have been proposed which realize the correct cosmological evolution and satisfy solar system and laboratory tests. Although non- relativist.ic stellar configurations can be constructed, we argue that relativistic stars cannot be present in such f(R) theories. This problem appears due to the dynamics of the effective scalar degree of freedom in the strong gravity regime. Our claim thus raises doubts on the viability of f(R) models.

本文言語	English
出版ステータス	Published - 2008 12月 1
イベント	18th Workshop on General Relativity and Gravitation in Japan, JGRG 2008 - Higashi-Hiroshima, Japan 継続期間: 2008 11月 17 → 2008 11月 21

Conference

Conference	18th Workshop on General Relativity and Gravitation in Japan, JGRG 2008
国/地域	Japan
City	Higashi-Hiroshima
Period	08/11/17 → 08/11/21

ASJC Scopus subject areas

原子分子物理学および光学

他のファイルとリンク

引用スタイル

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title = "Relativistic stars in f(r) gravity, and absence thereof",

abstract = "Several f(R) modified gravity models have been proposed which realize the correct cosmological evolution and satisfy solar system and laboratory tests. Although non- relativist.ic stellar configurations can be constructed, we argue that relativistic stars cannot be present in such f(R) theories. This problem appears due to the dynamics of the effective scalar degree of freedom in the strong gravity regime. Our claim thus raises doubts on the viability of f(R) models.",

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AU - Kohayashi, Tsutomu

AU - Maeda, Kei Ichi

PY - 2008/12/1

Y1 - 2008/12/1

N2 - Several f(R) modified gravity models have been proposed which realize the correct cosmological evolution and satisfy solar system and laboratory tests. Although non- relativist.ic stellar configurations can be constructed, we argue that relativistic stars cannot be present in such f(R) theories. This problem appears due to the dynamics of the effective scalar degree of freedom in the strong gravity regime. Our claim thus raises doubts on the viability of f(R) models.

AB - Several f(R) modified gravity models have been proposed which realize the correct cosmological evolution and satisfy solar system and laboratory tests. Although non- relativist.ic stellar configurations can be constructed, we argue that relativistic stars cannot be present in such f(R) theories. This problem appears due to the dynamics of the effective scalar degree of freedom in the strong gravity regime. Our claim thus raises doubts on the viability of f(R) models.

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M3 - Paper

AN - SCOPUS:84888164847

T2 - 18th Workshop on General Relativity and Gravitation in Japan, JGRG 2008

Y2 - 17 November 2008 through 21 November 2008

ER -

Relativistic stars in f(r) gravity, and absence thereof

抄録

Conference

ASJC Scopus subject areas

他のファイルとリンク

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