Quasinormal modes and stability of the rotating acoustic black hole: Numerical analysis

被引：128
作者：
Cardoso, V [1 ]
Lemos, JPS
Yoshida, S
机构：
[1] Univ Coimbra, Ctr Fis Computac, P-3004516 Coimbra, Portugal
[2] Univ Tecn Lisboa, Inst Super Tecn, Dept Fis, CENTRA,Ctr Multidisciplinar Astrofis, P-1049001 Lisbon, Portugal
[3] Waseda Univ, Shinjuku Ku, Tokyo 1698555, Japan
来源：
PHYSICAL REVIEW D | 2004年 / 70卷 / 12期
关键词：
D O I：
10.1103/PhysRevD.70.124032
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The study of the quasinormal modes (QNMs) of the 2+1 dimensional rotating draining bathtub acoustic black hole, the closest analogue found so far to the Kerr black hole, is performed. Both the real and imaginary parts of the quasinormal (QN) frequencies as a function of the rotation parameter B are found through a full nonlinear numerical analysis. Since there is no change in sign in the imaginary part of the frequency as B is increased we conclude that the 2+1 dimensional rotating draining bathtub acoustic black hole is stable against small perturbations.
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页码：124032 / 1
页数：7
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