Bounds on photon spheres and shadows of charged black holes in Einstein-Gauss-Bonnet-Maxwell gravity
Liang Ma, H. Lü
Abstract
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.
Topics & Concepts
PhysicsPhoton sphereGauss–Bonnet gravityEinsteinBlack hole (networking)Gauss–Bonnet theoremSPHERESPhotonShadow (psychology)Classical mechanicsHorizonCharged black holeGaussMathematical physicsGravitationQuantum mechanicsSchwarzschild radiusComputer scienceRouting (electronic design automation)Routing protocolPsychotherapistLink-state routing protocolComputer networkPsychologyAstronomyAstrophysical Phenomena and ObservationsBlack Holes and Theoretical PhysicsCosmology and Gravitation Theories