Extracting information on black hole horizons
| Autor: | D. Pugliese, Hernando Quevedo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
High Energy Astrophysical Phenomena (astro-ph.HE)
Physics Nuclear and High Energy Physics Photon Horizon Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) Astrophysics QC770-798 Rotation General Relativity and Quantum Cosmology Black hole Rotating black hole Nuclear and particle physics. Atomic energy. Radioactivity Emission spectrum Astrophysics - High Energy Astrophysical Phenomena |
| Zdroj: | Nuclear Physics B, Vol 972, Iss, Pp 115544-(2021) Nuclear Physics |
| ISSN: | 0550-3213 |
| Popis: | We present some features of Kerr black hole horizons that are replicated on orbits accessible to outside observers. We use the concepts of horizon confinement and replicas to show that outside the outer horizon there exist photon orbits whose frequencies contain information about the inner horizon and that can, in principle, be detected through the emission spectra of black holes. It is shown that such photon orbits exist close to the rotation axis of the Kerr geometry. We argue that these results could be used to recognize and further investigate black holes and their horizons 7 pages; 2 multipanels figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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