Multiple shadows from distorted static black holes
Multiple shadows from distorted static black holes
We study the local shadow of the Schwarzschild black hole with a quadrupole distortion and the influence of the external gravitational field on the photon dynamics. The external matter sources modify the light ring structure and lead to the appearance of multiple shadow images. In the case of negative quadrupole moments we identify the most prominent mechanism causing multiple shadow formation. Furthermore, we obtain a condition under which this mechanism can be realized. This condition depends on the quadrupole moment, but also on the position of the observer and the celestial sphere.
gr-qc, astro-ph.HE
Grover, Jai
adce390c-8332-47de-9b41-fb7effb4cc6f
Kunz, Jutta
8bbf2edb-a1ba-4496-8732-a1b2420bb4fa
Nedkova, Petya
5348d42d-ebf6-4d8e-867f-56231d8bbec7
Wittig, Alexander
3a140128-b118-4b8c-9856-a0d4f390b201
Yazadjiev, Stoytcho
05659f38-9fb8-4cad-a34b-d30cb1ef38fc
April 2018
Grover, Jai
adce390c-8332-47de-9b41-fb7effb4cc6f
Kunz, Jutta
8bbf2edb-a1ba-4496-8732-a1b2420bb4fa
Nedkova, Petya
5348d42d-ebf6-4d8e-867f-56231d8bbec7
Wittig, Alexander
3a140128-b118-4b8c-9856-a0d4f390b201
Yazadjiev, Stoytcho
05659f38-9fb8-4cad-a34b-d30cb1ef38fc
Grover, Jai, Kunz, Jutta, Nedkova, Petya, Wittig, Alexander and Yazadjiev, Stoytcho
(2018)
Multiple shadows from distorted static black holes.
Physical Review D, 97, [084024].
(doi:10.1103/PhysRevD.97.084024).
Abstract
We study the local shadow of the Schwarzschild black hole with a quadrupole distortion and the influence of the external gravitational field on the photon dynamics. The external matter sources modify the light ring structure and lead to the appearance of multiple shadow images. In the case of negative quadrupole moments we identify the most prominent mechanism causing multiple shadow formation. Furthermore, we obtain a condition under which this mechanism can be realized. This condition depends on the quadrupole moment, but also on the position of the observer and the celestial sphere.
Text
1802.03062
- Accepted Manuscript
More information
Accepted/In Press date: 26 February 2018
e-pub ahead of print date: 16 April 2018
Published date: April 2018
Additional Information:
18 pages, 14 figures
Keywords:
gr-qc, astro-ph.HE
Identifiers
Local EPrints ID: 419677
URI: http://eprints.soton.ac.uk/id/eprint/419677
ISSN: 1550-7998
PURE UUID: c49411f3-64c3-40cd-b588-f54d269da907
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Date deposited: 19 Apr 2018 16:30
Last modified: 16 Mar 2024 04:30
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Contributors
Author:
Jai Grover
Author:
Jutta Kunz
Author:
Petya Nedkova
Author:
Stoytcho Yazadjiev
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