Isothermal perfect fluid as a hydrodynamic vortex: Quasinormal mode investigation

被引：2
|
作者：
Oliveira, Leandro A. [1 ]
Crispino, LuIs C. B. [2 ]
机构：
[1] Univ Fed Para, Campus Salinopolis, BR-68721000 Salinopolis, Para, Brazil
[2] Univ Fed Para, Fac Fis, BR-66075110 Belem, Para, Brazil
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2018年 / 27卷 / 11期
关键词：
Analog models; ergoregion instability; isothermal perfect fluid; BLACK-HOLES; ANALOG;
D O I：
10.1142/S0218271818430137
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We compute the quasinormal frequencies of a purely rotating isothermal perfect fluid. We show that this system is unstable under linear perturbations, when the boundary condition is imposed inside the ergoregion.
引用
收藏
页数：11
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