Relativistic and Ultra-Relativistic Electron Bursts in Earth's Magnetotail Observed by Low-Altitude Satellites
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2024
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866914929805623296 |
|---|---|
| author | Zhang, Xiao-Jia Artemyev, Anton V. Li, Xinlin Arnold, Harry Angelopoulos, Vassilis Turner, Drew L. Shumko, Mykhaylo Runov, Andrei Mei, Yang Xiang, Zheng |
| author_facet | Zhang, Xiao-Jia Artemyev, Anton V. Li, Xinlin Arnold, Harry Angelopoulos, Vassilis Turner, Drew L. Shumko, Mykhaylo Runov, Andrei Mei, Yang Xiang, Zheng |
| contents | Earth's magnetotail, a night-side region characterized by stretched magnetic field lines and strong plasma currents, is the primary site for the release of magnetic field energy and its transformation into plasma heating and kinetic energy plus charged particle acceleration during magnetic reconnection. In this study, we demonstrate that the efficiency of this acceleration can be sufficiently high to produce populations of relativistic and ultra-relativistic electrons, with energies up to several MeV, which exceeds all previous theoretical and simulation estimates. Using data from the low altitude ELFIN and CIRBE CubeSats, we show multiple events of relativistic electron bursts within the magnetotail, far poleward of the outer radiation belt. These bursts are characterized by power-law energy spectra and can be detected during even moderate substorms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_17299 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Relativistic and Ultra-Relativistic Electron Bursts in Earth's Magnetotail Observed by Low-Altitude Satellites Zhang, Xiao-Jia Artemyev, Anton V. Li, Xinlin Arnold, Harry Angelopoulos, Vassilis Turner, Drew L. Shumko, Mykhaylo Runov, Andrei Mei, Yang Xiang, Zheng Space Physics Plasma Physics Earth's magnetotail, a night-side region characterized by stretched magnetic field lines and strong plasma currents, is the primary site for the release of magnetic field energy and its transformation into plasma heating and kinetic energy plus charged particle acceleration during magnetic reconnection. In this study, we demonstrate that the efficiency of this acceleration can be sufficiently high to produce populations of relativistic and ultra-relativistic electrons, with energies up to several MeV, which exceeds all previous theoretical and simulation estimates. Using data from the low altitude ELFIN and CIRBE CubeSats, we show multiple events of relativistic electron bursts within the magnetotail, far poleward of the outer radiation belt. These bursts are characterized by power-law energy spectra and can be detected during even moderate substorms. |
| title | Relativistic and Ultra-Relativistic Electron Bursts in Earth's Magnetotail Observed by Low-Altitude Satellites |
| topic | Space Physics Plasma Physics |
| url | https://arxiv.org/abs/2408.17299 |