Isothermal spheres in general relativity and Horava-type gravity

被引：0

作者：

Kan, Nahomi ^{[1
]}

Shiraishi, Kiyoshi ^{[2
]}

机构：

[1] Gifu Coll, Natl Inst Technol, Motosu, Gifu 5010495, Japan

[2] Yamaguchi Univ, Fac Sci, Yamaguchi, Yamaguchi 7538512, Japan

来源：

PHYSICAL REVIEW D | 2021年 / 103卷 / 06期

关键词：

GRAVOTHERMAL CATASTROPHE; GRAVITATIONAL-INSTABILITY; ENTROPY; SYSTEMS;

D O I：

10.1103/PhysRevD.103.064058

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We construct a toy model for isothermal spheres in Horava gravity, which includes Einstein's gravity if a parameter is appropriately chosen. The equations for the isothermal spheres are derived from the partition function of the gravitating particle system. We confirm that the Newtonian limit of the system coincides with the model of the well-known isothermal sphere. The stability of the isothermal sphere is found to be sensitive to the energy density at the center of the sphere.

引用

页数：8

共 46 条

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