Time evolution of the radial perturbations and linear stability of solitons and black holes in a generalized Skyrme model

被引：6

作者：

Doneva, Daniela D. ^{[1
,2
]}

Kokkotas, Kostas D. ^{[2
]}

Stefanov, Ivan Zh. ^{[3
]}

Yazadjiev, Stoytcho S. ^{[4
]}

机构：

[1] St Kliment Ohridski Univ Sofia, Dept Astron, Fac Phys, Sofia 1164, Bulgaria

[2] Univ Tubingen, D-72076 Tubingen, Germany

[3] Tech Univ Sofia, Dept Appl Phys, Sofia 1000, Bulgaria

[4] St Kliment Ohridski Univ Sofia, Dept Theoret Phys, Fac Phys, Sofia 1164, Bulgaria

来源：

PHYSICAL REVIEW D | 2011年 / 84卷 / 08期

关键词：

SCHWARZSCHILD; UNIQUENESS; FIELD;

D O I：

10.1103/PhysRevD.84.084021

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the time evolution of the radial perturbation for self-gravitating soliton and black-hole solutions in a generalized Skyrme model in which a dilaton is present. The background solutions were obtained recently by some of the authors. For both the solitons and the black holes two branches of solutions exist which merge at some critical value of the corresponding parameter. The results show that, similar to the case without a scalar field, one of the branches is stable against radial perturbations and the other is unstable. The conclusions for the linear stability of the black holes in the generalized Skyrme model are also in agreement with the results from the thermodynamical stability analysis based on the turning point method.

引用

页数：11

共 28 条

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