Particle Injection Problem in Magnetic Reconnection and Turbulence
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866915358120607744 |
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| author | Guo, Fan French, Omar Zhang, Qile Li, Xiaocan Seo, Jeongbhin |
| author_facet | Guo, Fan French, Omar Zhang, Qile Li, Xiaocan Seo, Jeongbhin |
| contents | Magnetic reconnection and turbulence in magnetically-dominated environments have been proposed as important nonthermal particle acceleration mechanisms that generate high energy particles and associated emissions. While the acceleration to high energy that produces the power-law energy distribution has drawn strong interest, recent studies actively discuss pre-acceleration, or injection, to a sufficient energy for a sustained and prolonged Fermi-like acceleration. The injection process is important for determining the fraction of nonthermal particles and energy partition between thermal and nonthermal particles. We review recent advances in understanding the injection mechanisms responsible for populating these nonthermal power-law spectra, and conclude with an outlook for studies and applications of injection models. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_19938 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Particle Injection Problem in Magnetic Reconnection and Turbulence Guo, Fan French, Omar Zhang, Qile Li, Xiaocan Seo, Jeongbhin Plasma Physics High Energy Astrophysical Phenomena Solar and Stellar Astrophysics Space Physics Magnetic reconnection and turbulence in magnetically-dominated environments have been proposed as important nonthermal particle acceleration mechanisms that generate high energy particles and associated emissions. While the acceleration to high energy that produces the power-law energy distribution has drawn strong interest, recent studies actively discuss pre-acceleration, or injection, to a sufficient energy for a sustained and prolonged Fermi-like acceleration. The injection process is important for determining the fraction of nonthermal particles and energy partition between thermal and nonthermal particles. We review recent advances in understanding the injection mechanisms responsible for populating these nonthermal power-law spectra, and conclude with an outlook for studies and applications of injection models. |
| title | Particle Injection Problem in Magnetic Reconnection and Turbulence |
| topic | Plasma Physics High Energy Astrophysical Phenomena Solar and Stellar Astrophysics Space Physics |
| url | https://arxiv.org/abs/2506.19938 |