Quadrupole moments of rapidly rotating compact objects in dilatonic Einstein-Gauss-Bonnet theory

被引：86
|
作者：
Kleihaus, Burkhard [1 ]
Kunz, Jutta [1 ]
Mojica, Sindy [1 ]
机构：
[1] Carl von Ossietzky Univ Oldenburg, Inst Phys, D-26111 Oldenburg, Germany
来源：
PHYSICAL REVIEW D | 2014年 / 90卷 / 06期
关键词：
AXISYMMETRICAL ELECTROVACUUM SPACETIMES; MULTIPOLE MOMENTS; BLACK-HOLES; GENERAL-RELATIVITY; EQUATIONS; GRAVITY; TENSOR; STARS;
D O I：
10.1103/PhysRevD.90.061501
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider rapidly rotating black holes and neutron stars in dilatonic Einstein-Gauss-Bonnet (EGBd) theory and determine their quadrupole moments, which receive a contribution from the dilaton. The quadrupole moment of EGBd black holes can be considerably larger than the Kerr value. For neutron stars, the universality property of the (I) over cap-(Q) over cap relation between the scaled moment of inertia and the scaled quadrupole moment appears to extend to EGBd theory.
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页数：5
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