Abstract
AbstractRecently, a parametrized Schwarzschild metric (PSM) was proposed, in whichn= 2 to solve the differences of mass of M87* from different observations. We find the axial gravitational quasinormal modes of this metric are unstable forn> 1. The decay rate of the quasinormal mode of the casen< 1 is much smaller than the casen= 1, which can be used to differentiate the PSM from a Schwarzschild one.
Funder
National Natural Science Foundation of China
Subject
Physics and Astronomy (miscellaneous)