Quasinormal modes and late-time tails in the background of Schwarzschild black hole pierced by a cosmic string: scalar, electromagnetic and gravitational perturbations

Abstract

We have studied the quasinormal modes and the late-time tail behaviors of scalar, electromagnetic and gravitational perturbations in the Schwarzschild black hole pierced by a cosmic string. Although the metric is locally identical to that of the Schwarzschild black hole so that the presence of the string will not imprint in the motion of test particles, we found that quasinormal modes and the late-time tails can reflect physical signatures of the cosmic string. Compared with the scalar and electromagnetic fields, the gravitational perturbation decays slower, which could be more interesting to disclose the string effect in this background.

17 pages; 7 figures

References in corpus (2)

• Quasinormal ringing of Kerr black holes: The excitation factors
• WKB analysis of the Regge-Wheeler equation down in the frequency plane

Cited by in corpus (4)

• Quasinormal modes of charged squashed Kaluza-Klein black holes in the Gödel Universe
• Ringdown Spectroscopy of Rotating Black Holes Pierced by Cosmic Strings
• Dynamical evolution of phantom scalar perturbation in the background of Schwarzschild black String spacetime
• An exact black hole spacetime with scalar field and its shadow together with quasinormal modes