Quasinormal modes of black holes with non-linear-electrodynamic sources in Rastall gravity

One of the notable modifications of General Relativity (GR) is the Rastall gravity. We have studied the quasinormal modes of black holes in Rastall gravity in presence of non-linear electrodynamic sources. Here the impacts of cosmological field, dust field, phantom field, quintessence field and radiation field on the quasinormal modes in presence of electrodynamic sources have been investigated. Apart from this, we have also checked the dependency of quasinormal modes with the Rastall parameter lambda, black hole structural constant N-s and charge of the black hole Q. The study shows that the quasinormal modes corresponding to the black hole with non-linear electrodynamic sources show significant deviations from a general charged black hole in Rastall gravity under certain conditions. Further, the behaviour of black holes and hence the quasinormal modes depend on the type of surrounding field considered. (C) 2021 Elsevier B.V. All rights reserved.

Automated summary

The study investigates the effects of non-linear electrodynamic sources on the quasinormal modes of black holes in Rastall gravity, as well as the dependency on the Rastall parameter, black hole structural constant, and black hole charge. Results show significant deviations in the quasinormal modes of black holes with non-linear electrodynamic sources compared to a general charged black hole under certain conditions. Additionally, the behavior of black holes and quasinormal modes vary depending on the type of surrounding field considered.