Quasinormal modes of the near extremal Schwarzschild-de Sitter black hole

被引：176

作者：

Cardoso, V ^{[1
]}

Lemos, JPS ^{[1
]}

机构：

[1] Univ Tecn Lisboa, Dept Fis, Ctr Multidisciplinar Astrofis, CENTRA,Inst Super Tecn, P-1049001 Lisbon, Portugal

来源：

PHYSICAL REVIEW D | 2003年 / 67卷 / 08期

关键词：

D O I：

10.1103/PhysRevD.67.084020

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present an exact expression for the quasinormal modes of scalar, electromagnetic, and gravitational perturbations of a near extremal Schwarzschild-de Sitter black hole and we show that is why a previous approximation holds exactly in this near extremal regime. In particular, our results give the asymptotic behavior of the quasinormal frequencies for highly damped modes, which has recently attracted much attention due to the proposed identification of its real part with the Barbero-Immirzi parameter.

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