Bounds on photon spheres and shadows of charged black holes in Einstein-Gauss-Bonnet-Maxwell gravity

Physics Letters B

Liang Ma¹  H. Lü² 

[1] Center for Joint Quantum Studies and Department of Physics, School of Science, Tianjin University, Tianjin 300350, China;Corresponding author.;

关键词: Photon sphere;    Photon shadow;    Higher-order gravities;    Universal bounds;    Black holes;   

DOI  :  

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown