期刊
PHYSICS LETTERS B
卷 807, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.physletb.2020.135535
关键词
Photon sphere; Photon shadow; Higher-order gravities; Universal bounds; Black holes
资金
- NSFC (National Natural Science Foundation of China) [11875200, 11935009]
We consider spherically symmetric and static charged black holes in Einstein-Gauss-Bonnet-Maxwell gravities in general D >= 5 dimensions and study their photon spheres and black hole shadows. We show that they all satisfy the sequence of inequalities recently proposed relating a black hole's horizon, photon sphere, shadow and its mass. (C) 2020 The Author(s). Published by Elsevier B.V.
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