QUASINORMAL MODES AND LATE-TIME TAILS IN THE BACKGROUND OF SCHWARZSCHILD BLACK HOLE PIERCED BY A COSMIC STRING: SCALAR, ELECTROMAGNETIC AND GRAVITATIONAL PERTURBATIONS

2007/01/31 by Songbai Chen, SONGBAI CHEN, Bin Wang +3
Physics and Astronomy · #Astrophysical Phenomena and Observations #Black Holes and Theoretical Physics #Black hole (networking) #COSMIC cancer database #Charged black hole #Cosmic censorship hypothesis #Cosmic string #Gravitation #Perturbation (astronomy) #Relativity and Gravitational Theory #Schwarzschild metric #Schwarzschild radius #gr-qc

paper · pdf · doi:10.1142/s0217751x08039785

published as IJMPA 23 (2008) 2505-2524 · 17 pages; 7 figures

openalex publication_date 2008/07/10 · arxiv created 2008/08/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

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 would be more interesting to disclose the string effect in this background.

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