https://doi.org/10.1140/epjp/s13360-023-04174-z
Regular Article
Shadows and quasinormal modes of the Bardeen black hole in cloud of strings
1
Department of Physics, Institute of Science, Banaras Hindu University, 221005, Varanasi, India
2
Department Physics, Institute of Applied Science and Humanities, GLA University, 281406, Mathura, Uttar Pradesh, India
3
Visiting Associate: Inter-University Center of Astronomy and Astrophysics (IUCAA), Pune, India
4
Department of Physics, Institute of Science, Banaras Hindu University, 221005, Varanasi, India
Received:
11
May
2023
Accepted:
6
June
2023
Published online:
16
June
2023
We investigate the black hole solution of Einstein’s gravity coupled with non-linear electrodynamics (NED) source in the background of a cloud of strings. We analyze the horizon structure and optical features of the black hole. The photon radius and shadows are obtained as a function of black hole parameters. We observe that the size of the shadow image is bigger than its horizon radius and photon sphere. We also study the quasi-normal modes using WKB formula for this black hole. The dependence of shadow radius and quasi-normal modes on black hole parameters reflects that they are mimicker to each other.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
