Bound on Photon Circular Orbits in General Relativity and Beyond
The existence of a photon circular orbit can tell us a lot about the nature of the underlying spacetime, since it plays a pivotal role in the understanding of the characteristic signatures of compact objects, namely the quasi-normal modes and shadow radius. For this purpose, determination of the loc...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Galaxies |
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| Online Access: | https://www.mdpi.com/2075-4434/9/4/96 |