Gravitational Larmor precession
Abstract Inspired by the reported existence of substantive magnetic fields in the vicinity of the central supermassive black holes in Sagittarius A* and Messier 87*, we consider test particle motion in the spacetime close to a generic spherical black hole in the presence of magnetic fields in its vi...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-08-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-023-11858-4 |
| _version_ | 1797682596135567360 |
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| author | Chandrachur Chakraborty Parthasarathi Majumdar |
| author_facet | Chandrachur Chakraborty Parthasarathi Majumdar |
| author_sort | Chandrachur Chakraborty |
| collection | DOAJ |
| description | Abstract Inspired by the reported existence of substantive magnetic fields in the vicinity of the central supermassive black holes in Sagittarius A* and Messier 87*, we consider test particle motion in the spacetime close to a generic spherical black hole in the presence of magnetic fields in its vicinity. Modelling such a spacetime in terms of an axisymmetric, non-rotating Ernst–Melvin–Schwarzschild black hole geometry with appropriate parameters, we compute the geodesic nodal-plane precession frequency for a test particle with mass, for such a spacetime, and obtain a non-vanishing result, surpassing earlier folklore that only axisymmetric spacetimes with rotation (non-vanishing Kerr parameter) can generate such a precession. We call this magnetic field-generated phenomenon Gravitational Larmor Precession. What we present here is a Proof of Concept incipient assay, rather than a detailed analysis of supermassive black holes with magnetic fields in their neighbourhood. However, for completeness, we briefly discuss observational prospects of this precession in terms of available magnetic field strengths close to central black holes in galaxies. |
| first_indexed | 2024-03-12T00:02:04Z |
| format | Article |
| id | doaj.art-5452e24dc7d44cabba724c9def18530e |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-03-12T00:02:04Z |
| publishDate | 2023-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-5452e24dc7d44cabba724c9def18530e2023-09-17T11:25:09ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-08-018381810.1140/epjc/s10052-023-11858-4Gravitational Larmor precessionChandrachur Chakraborty0Parthasarathi Majumdar1Manipal Centre for Natural Sciences, Manipal Academy of Higher EducationIndian Association for the Cultivation of ScienceAbstract Inspired by the reported existence of substantive magnetic fields in the vicinity of the central supermassive black holes in Sagittarius A* and Messier 87*, we consider test particle motion in the spacetime close to a generic spherical black hole in the presence of magnetic fields in its vicinity. Modelling such a spacetime in terms of an axisymmetric, non-rotating Ernst–Melvin–Schwarzschild black hole geometry with appropriate parameters, we compute the geodesic nodal-plane precession frequency for a test particle with mass, for such a spacetime, and obtain a non-vanishing result, surpassing earlier folklore that only axisymmetric spacetimes with rotation (non-vanishing Kerr parameter) can generate such a precession. We call this magnetic field-generated phenomenon Gravitational Larmor Precession. What we present here is a Proof of Concept incipient assay, rather than a detailed analysis of supermassive black holes with magnetic fields in their neighbourhood. However, for completeness, we briefly discuss observational prospects of this precession in terms of available magnetic field strengths close to central black holes in galaxies.https://doi.org/10.1140/epjc/s10052-023-11858-4 |
| spellingShingle | Chandrachur Chakraborty Parthasarathi Majumdar Gravitational Larmor precession European Physical Journal C: Particles and Fields |
| title | Gravitational Larmor precession |
| title_full | Gravitational Larmor precession |
| title_fullStr | Gravitational Larmor precession |
| title_full_unstemmed | Gravitational Larmor precession |
| title_short | Gravitational Larmor precession |
| title_sort | gravitational larmor precession |
| url | https://doi.org/10.1140/epjc/s10052-023-11858-4 |
| work_keys_str_mv | AT chandrachurchakraborty gravitationallarmorprecession AT parthasarathimajumdar gravitationallarmorprecession |