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

页数：11