Speaker
Moura, Filipe
(ISCTE - Instituto Universitário de Lisboa)
Description
We show that the quasinormal modes, in the eikonal limit, for accelerating (non-rotating) black holes, are related to the angular velocity of the circular null geodesics and to the corresponding Lyapunov exponent, in the same way as the ones for spherically symmetric black holes are. We compute those quasinormal modes and greybody factors for neutral and charged accelerating black holes, considering massless test scalar fields, and we show that the results are universal for perturbations of any spin. We also determine the radius of the shadow cast by these black holes.
Authors
Moura, Filipe
(ISCTE - Instituto Universitário de Lisboa)
Silva, Francisco
(Faculdade de Ciências da Universidade de Lisboa)