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Decay of a charged scalar field around a black hole: Quasinormal modes of RN, RNAdS, and dilaton black holes

2002/07/16 by R. A. Konoplya · 4 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Pulsars and Gravitational Waves Research #gr-qc

paper · pdf · doi:10.1103/physrevd.66.084007

published as Phys.Rev. D66 (2002) 084007 · 10 pages, LaTeX, 4 figures, considerable changes made and wrong interpretation of computations corrected

arxiv created 2002/07/16 · openalex publication_date 2002/10/11 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

It is well known that the charged scalar perturbations of the Reissner-Nordstr"om metric will decay slower at very late times than the neutral ones, thereby dominating in the late time signal. We show that, at the stage of quasinormal (QN) ringing, on the contrary, the neutral perturbations will decay slower for RN, RNAdS and dilaton black holes. The QN frequencies of the nearly extreme RN black hole have the same imaginary parts (damping times) for charged and neutral perturbations. An explanation of this fact is not clear but, possibly, is connected with the Choptuik scaling.

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