Magnetic reconnection under centrifugal and gravitational electromotive forces
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866908949918253056 |
|---|---|
| author | Fan, Zhong-Ying Zhou, Fan Li, Yuehang Guo, Minyong Chen, Bin |
| author_facet | Fan, Zhong-Ying Zhou, Fan Li, Yuehang Guo, Minyong Chen, Bin |
| contents | We examine the physical implications of the centrifugal and gravitational electromotive forces on magnetic reconnection in a Kerr black hole background. We find that both forces increase the reconnection rate, though the underlying mechanisms differ substantially. The gravitational force leads to a separation of charge density, breaking the quasi-neutrality of the plasma. In contrast, the centrifugal electromotive force affects the electric current by reducing the effective length of the current sheet. This reduction arises from the non-Euclidean spatial geometry observed by a locally comoving observer with respect to the rotating sheet. This phenomenon amplifies both the transport of charged carriers and the thermal-inertia effect within the current sheet, irrespective of the presence of a black hole. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_19491 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Magnetic reconnection under centrifugal and gravitational electromotive forces Fan, Zhong-Ying Zhou, Fan Li, Yuehang Guo, Minyong Chen, Bin High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology We examine the physical implications of the centrifugal and gravitational electromotive forces on magnetic reconnection in a Kerr black hole background. We find that both forces increase the reconnection rate, though the underlying mechanisms differ substantially. The gravitational force leads to a separation of charge density, breaking the quasi-neutrality of the plasma. In contrast, the centrifugal electromotive force affects the electric current by reducing the effective length of the current sheet. This reduction arises from the non-Euclidean spatial geometry observed by a locally comoving observer with respect to the rotating sheet. This phenomenon amplifies both the transport of charged carriers and the thermal-inertia effect within the current sheet, irrespective of the presence of a black hole. |
| title | Magnetic reconnection under centrifugal and gravitational electromotive forces |
| topic | High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2411.19491 |