Gravitational Waves from Black Hole Emission
Using adiabatic point-particle black hole perturbation theory, we simulate plausible gravitational wave (GW) signatures in two exotic scenarios (i) where a small black hole is emitted by a larger one (‘black hole emission’) and (ii) where a small black hole is emitted by a larger one and subsequentl...
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2025-01-01
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| Online Access: | https://www.mdpi.com/2218-1997/11/1/21 |
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| author | Tousif Islam Gaurav Khanna Steven L. Liebling |
| author_facet | Tousif Islam Gaurav Khanna Steven L. Liebling |
| author_sort | Tousif Islam |
| collection | DOAJ |
| description | Using adiabatic point-particle black hole perturbation theory, we simulate plausible gravitational wave (GW) signatures in two exotic scenarios (i) where a small black hole is emitted by a larger one (‘black hole emission’) and (ii) where a small black hole is emitted by a larger one and subsequently absorbed back (‘black hole absorption’). While such scenarios are forbidden in general relativity (GR), alternative theories (such as certain quantum gravity scenarios obeying the weak gravity conjecture, white holes, and Hawking radiation) may allow them. By leveraging the phenomenology of black hole emission and absorption signals, we introduce straightforward modifications to existing gravitational waveform models to mimic gravitational radiation associated with these exotic events. We anticipate that these (incomplete but) initial simulations, coupled with the adjusted waveform models, will aid in the development of null tests for GR using GWs. |
| format | Article |
| id | doaj-art-f0e5809ebd434f628d3c021cae30ba92 |
| institution | Kabale University |
| issn | 2218-1997 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Universe |
| spelling | doaj-art-f0e5809ebd434f628d3c021cae30ba922025-01-24T13:51:30ZengMDPI AGUniverse2218-19972025-01-011112110.3390/universe11010021Gravitational Waves from Black Hole EmissionTousif Islam0Gaurav Khanna1Steven L. Liebling2Kavli Institute of Theoretical Physics, University of California Santa Barbara, Santa Barbara, CA 93106, USADepartment of Physics, University of Massachusetts, Dartmouth, MA 02747, USASchool of Natural and Life Sciences, Long Island University, Brookville, NY 11548, USAUsing adiabatic point-particle black hole perturbation theory, we simulate plausible gravitational wave (GW) signatures in two exotic scenarios (i) where a small black hole is emitted by a larger one (‘black hole emission’) and (ii) where a small black hole is emitted by a larger one and subsequently absorbed back (‘black hole absorption’). While such scenarios are forbidden in general relativity (GR), alternative theories (such as certain quantum gravity scenarios obeying the weak gravity conjecture, white holes, and Hawking radiation) may allow them. By leveraging the phenomenology of black hole emission and absorption signals, we introduce straightforward modifications to existing gravitational waveform models to mimic gravitational radiation associated with these exotic events. We anticipate that these (incomplete but) initial simulations, coupled with the adjusted waveform models, will aid in the development of null tests for GR using GWs.https://www.mdpi.com/2218-1997/11/1/21black holesgravitational wavesperturbation theorybinary systemsgeneral relativityTeukolsky equation |
| spellingShingle | Tousif Islam Gaurav Khanna Steven L. Liebling Gravitational Waves from Black Hole Emission Universe black holes gravitational waves perturbation theory binary systems general relativity Teukolsky equation |
| title | Gravitational Waves from Black Hole Emission |
| title_full | Gravitational Waves from Black Hole Emission |
| title_fullStr | Gravitational Waves from Black Hole Emission |
| title_full_unstemmed | Gravitational Waves from Black Hole Emission |
| title_short | Gravitational Waves from Black Hole Emission |
| title_sort | gravitational waves from black hole emission |
| topic | black holes gravitational waves perturbation theory binary systems general relativity Teukolsky equation |
| url | https://www.mdpi.com/2218-1997/11/1/21 |
| work_keys_str_mv | AT tousifislam gravitationalwavesfromblackholeemission AT gauravkhanna gravitationalwavesfromblackholeemission AT stevenlliebling gravitationalwavesfromblackholeemission |