Particle-in-Cell Simulations of Synchrotron Maser Emission and Associated Particle Acceleration in Relativistic Shocks

M. Iwamoto, T. Amano, Y. Matsumoto, S. Matsukiyo, M. Hoshino

Research output: Contribution to journalConference articlepeer-review

Abstract

We study synchrotron maser emission and associated particle acceleration at electron-ion relativistic shocks by PIC simulations. Relativistic shocks emit intense electromagnetic waves from the shock front via the synchrotron maser instability. This synchrotron maser emission induces electrostatic plasma waves (i.e., wakefield) and transverse filamentary structures in the upstream region via the stimulated/induced Raman scattering and filamentation instability, respectively. Some lucky particles in the phase of the deceleration by the wakefield enter the filamentary structures. Then they are reflected by the wakefield and decoupled from the upstream bulk flow. These decoupled particles can feel the motional electric field and efficiently accelerated.

Original languageEnglish
Article number162
JournalProceedings of Science
Volume395
Publication statusPublished - Mar 18 2022
Event37th International Cosmic Ray Conference, ICRC 2021 - Virtual, Berlin, Germany
Duration: Jul 12 2021Jul 23 2021

All Science Journal Classification (ASJC) codes

  • General

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