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Moving black holes: energy extraction, absorption cross-section and the ring of fire
We consider the interaction between a plane wave and a (countermoving) black hole. We show that energy is transferred from the black hole to the wave, giving rise to a negative absorption cross section. Moving black holes absorb radiation and deposit energy in external radiation. Due to this effect,...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
2019
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.100.084001 http://cds.cern.ch/record/2680243 |
| _version_ | 1780962964201799680 |
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| author | Cardoso, Vitor Vicente, Rodrigo |
| author_facet | Cardoso, Vitor Vicente, Rodrigo |
| author_sort | Cardoso, Vitor |
| collection | CERN |
| description | We consider the interaction between a plane wave and a (countermoving) black hole. We show that energy is transferred from the black hole to the wave, giving rise to a negative absorption cross section. Moving black holes absorb radiation and deposit energy in external radiation. Due to this effect, a black hole hole of mass M moving at relativistic speeds in a cold medium will appear to be surrounded by a bright “ring” of diameter 33 GM/c2 and thickness ∼GM/c2. |
| id | cern-2680243 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2019 |
| record_format | invenio |
| spelling | cern-26802432023-10-04T05:57:26Zdoi:10.1103/PhysRevD.100.084001http://cds.cern.ch/record/2680243engCardoso, VitorVicente, RodrigoMoving black holes: energy extraction, absorption cross-section and the ring of firephysics.opticsOther Fields of Physicshep-thParticle Physics - Theoryastro-ph.HEAstrophysics and Astronomygr-qcGeneral Relativity and CosmologyWe consider the interaction between a plane wave and a (countermoving) black hole. We show that energy is transferred from the black hole to the wave, giving rise to a negative absorption cross section. Moving black holes absorb radiation and deposit energy in external radiation. Due to this effect, a black hole hole of mass M moving at relativistic speeds in a cold medium will appear to be surrounded by a bright “ring” of diameter 33 GM/c2 and thickness ∼GM/c2.We consider the interaction between a plane wave and a (counter-moving) black hole. We show that energy is transferred from the black hole to the wave, giving rise to a negative absorption cross-section. Moving black holes absorb radiation and deposit energy in external radiation. Due to this effect, a black hole hole of mass M moving at relativistic speeds in a cold medium will appear to be surrounded by a bright "ring" of diameter 3\sqrt{3}GM/c^2 and thickness GM/c^2.arXiv:1906.10140oai:cds.cern.ch:26802432019-06-24 |
| spellingShingle | physics.optics Other Fields of Physics hep-th Particle Physics - Theory astro-ph.HE Astrophysics and Astronomy gr-qc General Relativity and Cosmology Cardoso, Vitor Vicente, Rodrigo Moving black holes: energy extraction, absorption cross-section and the ring of fire |
| title | Moving black holes: energy extraction, absorption cross-section and the ring of fire |
| title_full | Moving black holes: energy extraction, absorption cross-section and the ring of fire |
| title_fullStr | Moving black holes: energy extraction, absorption cross-section and the ring of fire |
| title_full_unstemmed | Moving black holes: energy extraction, absorption cross-section and the ring of fire |
| title_short | Moving black holes: energy extraction, absorption cross-section and the ring of fire |
| title_sort | moving black holes: energy extraction, absorption cross-section and the ring of fire |
| topic | physics.optics Other Fields of Physics hep-th Particle Physics - Theory astro-ph.HE Astrophysics and Astronomy gr-qc General Relativity and Cosmology |
| url | https://dx.doi.org/10.1103/PhysRevD.100.084001 http://cds.cern.ch/record/2680243 |
| work_keys_str_mv | AT cardosovitor movingblackholesenergyextractionabsorptioncrosssectionandtheringoffire AT vicenterodrigo movingblackholesenergyextractionabsorptioncrosssectionandtheringoffire |