Deformed black hole immersed in dark matter spike
Xu, Zhaoyi3,5; Wang JC(王建成)1,2,4; Tang MR(唐美荣)1,2,4
刊名JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
2021-09
期号9
关键词GR black holes modified gravity
ISSN号1475-7516
DOI10.1088/1475-7516/2021/09/007
产权排序第2完成单位
文献子类Article
英文摘要

If a lot of dark matter particles accumulate near the black hole, then the chances of detecting dark matter signals near a black hole are greatly increased. These effects may be observed by the Event Horizon Telescope (EHT), Tianqin project, Taiji project, Laser Interferometer Space Antenna (LISA) and Laser Interferometer Gravitational-Wave Observatory (LIGO). In this work, we explore the effects of dark matter spikes on black hole space-time. For the Schwarzschild-like black hole case, we consider Newton's approximation and perturbation approximation. This makes it possible to use Xu's method to solve the Einstein field equation, and extend Schwarzschild-like black hole to Kerr-like black hole (BH) via Newman-Janis (NJ) algorithm. By analyzing the dark matter spike on the black hole event horizon (EH), stationary limit surfaces (SLS), ergosphere and energy-momentum tensors (EMT), we found that compared with the dark matter halo, the dark matter spike would have a higher effect on the black hole by several orders of magnitude. Therefore, if there is a dark matter spike near the black hole, it is very possible to test the dark matter model through gravitational wave (GW) observation and EHT observation.

学科主题天文学 ; 天体物理学 ; 高能天体物理学
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
资助项目Special Natural Science Fund of Guizhou University[X2020068] ; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation[2019M650846]
WOS关键词MILKY
WOS研究方向Astronomy & Astrophysics ; Physics
语种英语
出版者IOP Publishing Ltd
WOS记录号WOS:000707382900007
资助机构Special Natural Science Fund of Guizhou University[X2020068] ; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation[2019M650846]
内容类型期刊论文
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/24641]  
专题云南天文台_高能天体物理研究组
通讯作者Tang MR(唐美荣)
作者单位1.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, P.R. China
2.University of Chinese Academy of Sciences, Yuquan road, Shijingshan district, Beijing 100049, P.R. China;
3.Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan road, Shijingshan district, Beijing 100049, P.R. China;
4.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, P.R. China;
5.College of Physics, Guizhou University, Huaxi District, Guiyang 550025, P.R. China;
推荐引用方式
GB/T 7714
Xu, Zhaoyi,Wang JC,Tang MR. Deformed black hole immersed in dark matter spike[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2021(9).
APA Xu, Zhaoyi,Wang JC,&Tang MR.(2021).Deformed black hole immersed in dark matter spike.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(9).
MLA Xu, Zhaoyi,et al."Deformed black hole immersed in dark matter spike".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .9(2021).
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