2020/07/01 by Ángel Rincón, Angel Rincon, Grigoris Panotopoulos
Physics and Astronomy · #Black Holes and Theoretical Physics #Black hole (networking) #Cosmology and Gravitation Theories #Dilaton #Overtone #Pulsars and Gravitational Waves Research #Quasinormal mode #Scalar (mathematics) #Scalar field #gr-qc
paper · pdf · doi:10.1088/1402-4896/aba201
12 pages, 2 figures, 12 tables. Accepted for publication in Physica Scripta. arXiv admin note: text overlap with arXiv:2006.11889
arxiv created 2020/07/01 · openalex publication_date 2020/07/02 · openalex created_date 2020/07/10 · arxiv updated 2020/08/26 · openalex updated_date 2026/08/05
Abstract We compute the quasinormal frequencies for scalar perturbations of hairy black holes in four-dimensional Einstein-Maxwell-dilaton theory assuming a non-trivial scalar potential for the dilaton field. We investigate the impact on the spectrum of the angular degree, the overtone number, the charges of the black hole as well as the magnitude of the scalar potential. All modes are found to be stable. Our numerical results are summarized in tables, and for better visualization, we show them graphically as well.