Photon regions and umbilic conditions in stationary axisymmetric spacetimes
Abstract Photon region (PR) in the strong gravitational field is defined as a compact region where photons can travel endlessly without going to infinity or disappearing at the event horizon. In Schwarzschild metric PR degenerates to the two-dimensional photon sphere $$r=3r_g/2$$ r=3rg/2 where close...
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| Principais autores: | , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
SpringerOpen
2020-06-01
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| coleção: | European Physical Journal C: Particles and Fields |
| Acesso em linha: | http://link.springer.com/article/10.1140/epjc/s10052-020-8070-z |
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