Inspirals from the innermost stable circular orbit of Kerr black holes: exact solutions and universal radial flow
We present exact solutions of test particle orbits spiraling inward from the innermost stable circular orbit (ISCO) of a Kerr black hole. Our results are valid for any allowed value of the angular momentum a parameter of the Kerr metric. These solutions are of considerable physical interest. In part...
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| Format: | Journal article |
| Language: | English |
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American Physical Society
2022
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| _version_ | 1797108139498143744 |
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| author | Mummery, AP Balbus, S |
| author_facet | Mummery, AP Balbus, S |
| author_sort | Mummery, AP |
| collection | OXFORD |
| description | We present exact solutions of test particle orbits spiraling inward from the innermost stable circular orbit (ISCO) of a Kerr black hole. Our results are valid for any allowed value of the angular momentum a parameter of the Kerr metric. These solutions are of considerable physical interest. In particular, the radial four-velocity of these orbits is both remarkably simple and, with the radial coordinate scaled by its ISCO value, universal in form, otherwise completely independent of the black hole spin. |
| first_indexed | 2024-03-07T07:23:38Z |
| format | Journal article |
| id | oxford-uuid:f177369f-c707-4784-8cad-e351fd68d5c7 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:23:38Z |
| publishDate | 2022 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:f177369f-c707-4784-8cad-e351fd68d5c72022-11-07T12:19:51ZInspirals from the innermost stable circular orbit of Kerr black holes: exact solutions and universal radial flowJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f177369f-c707-4784-8cad-e351fd68d5c7EnglishSymplectic ElementsAmerican Physical Society2022Mummery, APBalbus, SWe present exact solutions of test particle orbits spiraling inward from the innermost stable circular orbit (ISCO) of a Kerr black hole. Our results are valid for any allowed value of the angular momentum a parameter of the Kerr metric. These solutions are of considerable physical interest. In particular, the radial four-velocity of these orbits is both remarkably simple and, with the radial coordinate scaled by its ISCO value, universal in form, otherwise completely independent of the black hole spin. |
| spellingShingle | Mummery, AP Balbus, S Inspirals from the innermost stable circular orbit of Kerr black holes: exact solutions and universal radial flow |
| title | Inspirals from the innermost stable circular orbit of Kerr black holes: exact solutions and universal radial flow |
| title_full | Inspirals from the innermost stable circular orbit of Kerr black holes: exact solutions and universal radial flow |
| title_fullStr | Inspirals from the innermost stable circular orbit of Kerr black holes: exact solutions and universal radial flow |
| title_full_unstemmed | Inspirals from the innermost stable circular orbit of Kerr black holes: exact solutions and universal radial flow |
| title_short | Inspirals from the innermost stable circular orbit of Kerr black holes: exact solutions and universal radial flow |
| title_sort | inspirals from the innermost stable circular orbit of kerr black holes exact solutions and universal radial flow |
| work_keys_str_mv | AT mummeryap inspiralsfromtheinnermoststablecircularorbitofkerrblackholesexactsolutionsanduniversalradialflow AT balbuss inspiralsfromtheinnermoststablecircularorbitofkerrblackholesexactsolutionsanduniversalradialflow |