Distorted local shadows

被引：37

作者：

Abdolrahimi, Shohreh ^{[1
,2
]}

Mann, Robert B. ^{[3
]}

Tzounis, Christos ^{[1
,2
]}

机构：

[1] Univ Alberta, Inst Theoret Phys, Edmonton, AB T6G 2G7, Canada

[2] Carl von Ossietzky Univ Oldenburg, Inst Phys, D-26111 Oldenburg, Germany

[3] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada

来源：

PHYSICAL REVIEW D | 2015年 / 91卷 / 08期

基金：

加拿大自然科学与工程研究理事会;

关键词：

BLACK-HOLE;

D O I：

10.1103/PhysRevD.91.084052

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We introduce the notion of a local shadow for a black hole and determine its shape for the particular case of a distorted Schwarzschild black hole. Considering the lowest-order even and odd multiple moments, we compute the relation between the deformations of the shadow of a Schwarzschild black hole and the distortion multiple moments. For the range of values of multiple moments that we consider, the horizon is deformed much less than its corresponding shadow, suggesting the horizon is more "rigid." Quite unexpectedly, we find that a prolate distortion of the horizon gives rise to an oblate distortion of the shadow and vice versa.

引用

页数：12

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