Rotating Black Holes in Dilatonic Einstein-Gauss-Bonnet Theory

被引：221

作者：

Kleihaus, Burkhard ^{[1
]}

Kunz, Jutta ^{[1
]}

Radu, Eugen ^{[2
,3
]}

机构：

[1] Carl von Ossietzky Univ Oldenburg, Inst Phys, D-26111 Oldenburg, Germany

[2] Sch Theoret Phys DIAS, Dublin 4, Ireland

[3] Natl Univ Ireland Maynooth, Dept Comp Sci, Maynooth, Kildare, Ireland

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 15期

关键词：

EFFECTIVE STRING THEORY; GRAVITY;

D O I：

10.1103/PhysRevLett.106.151104

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We construct generalizations of the Kerr black holes by including higher-curvature corrections in the form of the Gauss-Bonnet density coupled to the dilaton. We show that the domain of existence of these Einstein-Gauss-Bonnet-dilaton (EGBD) black holes is bounded by the Kerr black holes, the critical EGBD black holes, and the singular extremal EGBD solutions. The angular momentum of the EGBD black holes can exceed the Kerr bound. The EGBD black holes satisfy a generalized Smarr relation. We also compare their innermost stable circular orbits with those of the Kerr black holes and show the existence of differences which might be observable in astrophysical systems.

引用

页数：4

共 15 条

[1]

Alexeyev SO, 1997, PHYS REV D, V55, P2110, DOI 10.1103/PhysRevD.55.2110

[2] Rotating attractors [J].