Electron Surfing and Drift Accelerations in a Weibel-Dominated High-Mach-Number Shock.

• MATSUMOTO, Yosuke

• AMANO, Takanobu

• KATO, Tsunehiko N

• HOSHINO, Masahiro

Abstract

type:text

[ABSTRACT] How electrons get accelerated to relativistic energies in a high-Mach-number quasiperpendicular shock is presented by means of ab initio particle-in-cell simulations in three dimensions. We found that coherent electrostatic Buneman waves and ion-Weibel magnetic turbulence coexist in a strong-shock structure whereby particles gain energy during shock surfing and subsequent stochastic drift accelerations. Energetic electrons that initially experienced the surfing acceleration undergo pitch-angle diffusion by interacting with magnetic turbulence and continuous acceleration during confinement in the shock transition region. The ion-Weibel turbulence is the key to the efficient nonthermal electron acceleration.

Journal

• Physical review letters

  Physical review letters 119 (10), 105101-1-105101-5, 2017-09-08

  American Physical Society

Keywords

• General Physics and Astronomy

Details

• CRID: 1050007072213714688
• NII Article ID: 120007088133
• ISSN: 10797114
• ISSN: 00319007
• DOI: 10.1103/physrevlett.119.105101
• Web Site: https://opac.ll.chiba-u.jp/da/curator/104419/
• Web Site: https://link.aps.org/article/10.1103/PhysRevLett.119.105101
• Web Site: http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevLett.119.105101/fulltext
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN