Quasinormal modes of charged black holes in Einstein-Maxwell-Weyl gravity *
De-Cheng ZouCenter for Gravitation and Cosmology and College of Physical Science and Technology, Yangzhou University, Yangzhou 225009, ChinaChao WuCenter for Gravitation and Cosmology and College of Physical Science and Technology, Yangzhou University, Yangzhou 225009, ChinaMing ZhangFaculty of Science, Xi’an Aeronautical University, Xi’an 710077 ChinaRui‐Hong YueCenter for Gravitation and Cosmology and College of Physical Science and Technology, Yangzhou University, Yangzhou 225009, China
2020en
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Abstract We study quasinormal modes (QNMs) of charged black holes in the Einstein-Maxwell-Weyl (EMW) gravity by adopting the test scalar field perturbation. We find that the imaginary part of QNM frequencies is consistently negative for different angular parameters l , indicating that these modes always decay and are therefore stable. We do not observe a linear relationship between the QNM frequency ω and parameter p for these black holes, as their charge Q causes a nonlinear effect. We evaluate the massive scalar field perturbation in charged black holes and find that random long lived modes (i.e., quasiresonances) could exist in this spectrum.
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