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Kerr-anti-de Sitter/de Sitter black hole in perfect fluid dark matter background
Xu ZY(徐兆意)1,2,3,4; Hou X(侯贤)1,3,4; Wang JC(王建成)1,2,3,4
发表期刊CLASSICAL AND QUANTUM GRAVITY
2018-06-07
卷号35期号:11
DOI10.1088/1361-6382/aabcb6
产权排序第1完成单位
收录类别SCI
关键词Kerr-ads/ds Black Hole Solution Perfect Fluid Dark Matter Newman-janis Method Rotation Velocity
摘要

We obtain the Kerr-anti-de-sitter (Kerr-AdS) and Kerr-de-sitter (Kerr-dS) black hole (BH) solutions to the Einstein field equation in the perfect fluid dark matter background using the Newman-Janis method and Mathematica package. We discuss in detail the black hole properties and obtain the following main results: (i) From the horizon equation g(rr) = 0, we derive the relation between the perfect fluid dark matter parameter alpha and the cosmological constant Lambda when the cosmological horizon r(Lambda) exists. For Lambda = 0, we find that alpha is in the range 0 < alpha < 2M for alpha > 0 and -7.18M < alpha < 0 for alpha < 0. For positive cosmological constant Lambda (Kerr-AdS BH), alpha(max) decreases if alpha > 0, and alpha(min) increases if alpha < 0. For negetive cosmological constant -Lambda (Kerr-dS BH), alpha(max) increases if alpha > 0 and alpha(min) decreases if alpha < 0; (ii) An ergosphere exists between the event horizon and the outer static limit surface. The size of the ergosphere evolves oppositely for alpha > 0 and alpha < 0, while decreasing with the increasing | alpha |. When there is sufficient dark matter around the black hole, the black hole spacetime changes remarkably; (iii) The singularity of these black holes is the same as that of rotational black holes. In addition, we study the geodesic motion using the Hamilton-Jacobi formalism and find that when alpha is in the above ranges for Lambda = 0, stable orbits exist. Furthermore, the rotational velocity of the black hole in the equatorial plane has different behaviour for different a and the black hole spin a. It is asymptotically flat and independent of alpha if alpha > 0 while is asymptotically flat only when alpha is close to zero if alpha < 0. We anticipate that Kerr-Ads/dS black holes could exist in the universe and our future work will focus on the observational effects of the perfect fluid dark matter on these black holes.

项目资助者National Natural Science Foundation of China(11503078, 11573060, 11661161010)
语种英语
学科领域天文学
学科门类理学 ; 理学::天文学
文章类型Article
出版者IOP PUBLISHING LTD
ISSN0264-9381
URL查看原文
WOS记录号WOS:000431146100003
WOS研究方向Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Multidisciplinary ; Physics, Particles & Fields
关键词[WOS]Probe Wmap Observations ; Vector Field ; Quintessence ; Energy ; Dynamics
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/12360
专题高能天体物理研究组
中国科学院天体结构与演化重点实验室
通讯作者Xu ZY(徐兆意)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, People's Republic of China
2.University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, People's Republic of China
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, People's Republic of China
推荐引用方式
GB/T 7714
Xu ZY,Hou X,Wang JC. Kerr-anti-de Sitter/de Sitter black hole in perfect fluid dark matter background[J]. CLASSICAL AND QUANTUM GRAVITY,2018,35(11).
APA Xu ZY,Hou X,&Wang JC.(2018).Kerr-anti-de Sitter/de Sitter black hole in perfect fluid dark matter background.CLASSICAL AND QUANTUM GRAVITY,35(11).
MLA Xu ZY,et al."Kerr-anti-de Sitter/de Sitter black hole in perfect fluid dark matter background".CLASSICAL AND QUANTUM GRAVITY 35.11(2018).
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