The shadow of Kerr-Newman black hole surrounded by perfect fluid matter in Rastall gravity

doi:10.1088/1402-4896/ad25d0

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	The shadow of Kerr-Newman black hole surrounded by perfect fluid matter in Rastall gravity
	Ma, Ju 1; Wang JC(王建成)2 ; Gao, Quan-gui 1,3; Qin, Long-hua 1
发表期刊	PHYSICA SCRIPTA
	2024-03-01
卷号	99 期号:3
DOI	10.1088/1402-4896/ad25d0
产权排序	第2完成单位
收录类别	SCI ; EI
关键词	black hole shadow dark matter dark energy Rastall gravity general relativity
摘要	We investigate analytically the apparent shadows cast by Kerr-Newman black hole with surrounding perfect fluid matter in Rastall gravity theory. With the help of the Hamilton-Jacobi equation and Carter constant separable method, we derive the null geodesics of the black hole space-time and calculate the numerical results of the horizon structures. The results reveal that three horizons (Cauchy horizon r -, event horizon r + and cosmological horizon r q ) occur in the space-time, and the horizon structure could degenerate while the Rastall parameter k lambda arrives the critical value. By fixing the value of equation state parameter omega similar to of surrounding substance for both cases of dark matter ( omega similar to=-1/3 ) and dark energy ( omega similar to=-2/3 ), we study the effects of the perfect fluid matter intensity N s , the Rastall parameter k lambda, the black hole spin a and the black hole charge Q on black hole shadows in detail. Furthermore, the effective potentials for black hole space-time and the energy emission rate of the black hole are also conducted and discussed.
资助项目	National Natural Science Foundation of Chinahttps://doi.org/10.13039/501100001809[12063006]; National Natural Science Foundation of China
项目资助者	National Natural Science Foundation of Chinahttps://doi.org/10.13039/501100001809[12063006] ; National Natural Science Foundation of China
语种	英语
学科领域	天文学
文章类型	Article
出版者	IOP Publishing Ltd
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN	0031-8949
URL	查看原文
WOS记录号	WOS:001161894800001
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
关键词[WOS]	TELESCOPE RESULTS. I.
EI入藏号	20240815582588
EI主题词	Gravitation
EI分类号	657.2 Extraterrestrial Physics and Stellar Phenomena - 921.6 Numerical Methods - 931.5 Gravitation, Relativity and String Theory
引用统计
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.ynao.ac.cn/handle/114a53/26522
专题	天体测量技术及应用研究组
作者单位	1.Department of Physics, Yuxi Normal University, Yuxi 653100, People's Republic of China; 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; 3.Key Laboratory of Astroparticle Physics of Yunnan Province, Kunming 650091, People's Republic of China
推荐引用方式 GB/T 7714	Ma, Ju,Wang JC,Gao, Quan-gui,et al. The shadow of Kerr-Newman black hole surrounded by perfect fluid matter in Rastall gravity[J]. PHYSICA SCRIPTA,2024,99(3).
APA	Ma, Ju,王建成,Gao, Quan-gui,&Qin, Long-hua.(2024).The shadow of Kerr-Newman black hole surrounded by perfect fluid matter in Rastall gravity.PHYSICA SCRIPTA,99(3).
MLA	Ma, Ju,et al."The shadow of Kerr-Newman black hole surrounded by perfect fluid matter in Rastall gravity".PHYSICA SCRIPTA 99.3(2024).

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