Connections between the Shadow Radius and the Quasinormal Modes of Kerr-Sen Black Hole
Xianglong Wu, Xiangdong Zhang
Abstract
The correspondence between the shadow radius and the real part of the quasinormal modes (QNMs) of a Kerr–Sen black hole is studied. By using the equation of the shadow radius of Kerr–Sen black hole and the angular separation constant of the QNMs, the expression of QNMs related to shadow radius is established in the eikonal limit. We found that, our formula can reduce to the previous result of Kerr black hole when Kerr-Sen parameter b sets to zero.
Topics & Concepts
PhysicsEikonal equationRADIUSRotating black holeShadow (psychology)Black hole (networking)Eikonal approximationQuantum electrodynamicsMathematical physicsQuantum mechanicsClassical mechanicsAngular momentumRouting (electronic design automation)Computer securityRouting protocolComputer sciencePsychologyPsychotherapistComputer networkLink-state routing protocolPulsars and Gravitational Waves ResearchAstrophysical Phenomena and ObservationsBlack Holes and Theoretical Physics