Collisionless ion-electron energy exchange in magnetized shocks
Fuente:
arXiv
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| Autores principales: | , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866915257272762368 |
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| author | Zhang, Y. Heuer, P. V. Wen, H. Davies, J. R. Ren, C. Schaeffer, D. B. Blackman, E. G. Zhang, J. Bret, A. García-Rubio, F. |
| author_facet | Zhang, Y. Heuer, P. V. Wen, H. Davies, J. R. Ren, C. Schaeffer, D. B. Blackman, E. G. Zhang, J. Bret, A. García-Rubio, F. |
| contents | Energy partition between ions and electrons in collisionless shocks has long been an unsolved fundamental physical problem. We show that kinetic simulations of moderate Alfvénic Mach number, magnetized, collisionless shocks reveal rapid, faster-than-Coulomb, energy exchange between ions and electrons when the plasma is sufficiently magnetized. Using kinetic and multi-fluid models with counter-streaming ions, we identify resonances between electron whistler and ion magnetohydrodynamic waves that account for this rapid energy exchange. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_17774 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Collisionless ion-electron energy exchange in magnetized shocks Zhang, Y. Heuer, P. V. Wen, H. Davies, J. R. Ren, C. Schaeffer, D. B. Blackman, E. G. Zhang, J. Bret, A. García-Rubio, F. Plasma Physics Energy partition between ions and electrons in collisionless shocks has long been an unsolved fundamental physical problem. We show that kinetic simulations of moderate Alfvénic Mach number, magnetized, collisionless shocks reveal rapid, faster-than-Coulomb, energy exchange between ions and electrons when the plasma is sufficiently magnetized. Using kinetic and multi-fluid models with counter-streaming ions, we identify resonances between electron whistler and ion magnetohydrodynamic waves that account for this rapid energy exchange. |
| title | Collisionless ion-electron energy exchange in magnetized shocks |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2504.17774 |