https://doi.org/10.1140/epjc/s10052-018-6065-9
Regular Article - Theoretical Physics
Quasinormal modes of a charged spherical black hole with scalar hair for scalar and Dirac perturbations
Department of Physical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Nadia, West Bengal, 741246, India
* e-mail: narayan@iiserkol.ac.in
Received:
29
November
2017
Accepted:
13
July
2018
Published online:
23
July
2018
The quasinormal modes of charged and uncharged massive scalar fields and also of charged Dirac fields against the background of a charged spherical black hole endowed with a scalar hair have been investigated. Special emphasis has been given to the case where negative scalar charge dominates over the electric charge of the black hole which mimics an Einstein-Rosen bridge. Except for the complete monotonic behaviour of the damping (imaginary part of the quasinormal frequency) against the charge of the black hole as opposed to the existence of a peak for the pure Reissner-Nordström case, the qualitative behaviour does not appreciably change due to the presence of scalar hair.
© The Author(s), 2018
