Mildly relativistic magnetized shocks in electron-ion plasmas - II. Particle acceleration and heating

Arianna Ligorini, Jacek Niemiec, Oleh Kobzar, Masanori Iwamoto, Artem Bohdan, Martin Pohl, Yosuke Matsumoto, Takanobu Amano, Shuichi Matsukiyo, Masahiro Hoshino

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

Particle acceleration and heating at mildly relativistic magnetized shocks in electron-ion plasma are investigated with unprecedentedly high-resolution 2D particle-in-cell simulations that include ion-scale shock rippling. Electrons are super-adiabatically heated at the shock, and most of the energy transfer from protons to electrons takes place at or downstream of the shock. We are the first to demonstrate that shock rippling is crucial for the energization of electrons at the shock. They remain well below equipartition with the protons. The downstream electron spectra are approximately thermal with a limited supra-thermal power-law component. Our results are discussed in the context of wakefield acceleration and the modelling of electromagnetic radiation from blazar cores.

本文言語英語
ページ(範囲)5065-5074
ページ数10
ジャーナルMonthly Notices of the Royal Astronomical Society
502
4
DOI
出版ステータス出版済み - 4 1 2021

All Science Journal Classification (ASJC) codes

  • 天文学と天体物理学
  • 宇宙惑星科学

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