Asymmetric dark matter stars

被引：79
|
作者：
Kouvaris, Chris [1 ]
Nielsen, Niklas Gronlund
机构：
[1] Univ Southern Denmark, CP3 Origins, Campusvej 55, DK-5230 Odense M, Denmark
来源：
PHYSICAL REVIEW D | 2015年 / 92卷 / 06期
基金：
新加坡国家研究基金会;
关键词：
COSMOLOGICAL SIMULATIONS; GALAXIES; MILKY; CONSTRAINTS; EVOLUTION; CORES; HALO;
D O I：
10.1103/PhysRevD.92.063526
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the possibility of asymmetric dark matter with self-interactions forming compact stable objects. We solve the Tolman-Oppenheimer-Volkoff equation and find the mass-radius relation of such "dark stars," their density profile and their Chandrasekhar mass limit. We consider fermionic asymmetric dark matter with Yukawa-type self-interactions appropriate for solving the well-known problems of the collisionless dark matter paradigm. We find that in several cases the relativistic effects are significant.
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收藏
页数：14
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