Effect of magnetic field inclination on black hole jet power and particle acceleration
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866909753201917952 |
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| author | Figueiredo, Enzo Cerutti, Benoît Parfrey, Kyle |
| author_facet | Figueiredo, Enzo Cerutti, Benoît Parfrey, Kyle |
| contents | Rotating black holes are known to launch relativistic jets and accelerate particles provided they accrete a magnetized plasma. However, it remains unclear how the global magnetic field orientation affects the jet powering efficiency. Here, we propose the first kinetic study of a collisionless plasma around a Kerr black hole that is embedded in a magnetic field inclined with respect to the black hole's spin axis. Using three-dimensional general-relativistic particle-in-cell simulations, we show that while oblique magnetic field configurations significantly reduce the jet power, particle acceleration remains highly efficient regardless. This suggests that black holes producing a weak jet could still be bright sources of nonthermal radiation and cosmic rays. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_02211 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Effect of magnetic field inclination on black hole jet power and particle acceleration Figueiredo, Enzo Cerutti, Benoît Parfrey, Kyle High Energy Astrophysical Phenomena Rotating black holes are known to launch relativistic jets and accelerate particles provided they accrete a magnetized plasma. However, it remains unclear how the global magnetic field orientation affects the jet powering efficiency. Here, we propose the first kinetic study of a collisionless plasma around a Kerr black hole that is embedded in a magnetic field inclined with respect to the black hole's spin axis. Using three-dimensional general-relativistic particle-in-cell simulations, we show that while oblique magnetic field configurations significantly reduce the jet power, particle acceleration remains highly efficient regardless. This suggests that black holes producing a weak jet could still be bright sources of nonthermal radiation and cosmic rays. |
| title | Effect of magnetic field inclination on black hole jet power and particle acceleration |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2508.02211 |