Shadow casted by a Konoplya-Zhidenko rotating non-Kerr black hole

被引：119

作者：

Wang, Mingzhi ^{[1
,2
]}

Chen, Songbai ^{[1
,2
,3
,4
]}

Jing, Jiliang ^{[1
,2
,3
,4
]}

机构：

[1] Hunan Normal Univ, Inst Phys, Changsha 410081, Hunan, Peoples R China

[2] Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China

[3] Hunan Normal Univ, Key Lab Low Dimens Quantum Struct & Quantum Contr, Minist Educ, Changsha 410081, Hunan, Peoples R China

[4] Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat, Changsha 410081, Hunan, Peoples R China

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2017年 / 10期

基金：

中国国家自然科学基金;

关键词：

astrophysical black holes; gravity; GRAVITATIONAL-WAVES;

D O I：

10.1088/1475-7516/2017/10/051

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have investigated the shadow of a Konoplya-Zhidenko rotating non-Kerr black hole with an extra deformation parameter. The spacetime structure arising from the deformed parameter affects sharply the black hole shadow. With the increase of the deformation parameter, the size of the shadow of black hole increase and its shape becomes more rounded for arbitrary rotation parameter. The D-shape shadow of black hole emerges only in the case a < 2 root 3/3 M with the proper deformation parameter. Especially, the black hole shadow possesses a cusp shape with small eye lashes in the cases with a > M, and the shadow becomes less cuspidal with the increase of the deformation parameter. Our result show that the presence of the deformation parameter yields a series of significant patterns for the shadow casted by a Konoplya-Zhidenko rotating non-Kerr black hole.

引用

页数：13

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