Scattering of Ions at a Rippled Shock

Bibliographic Details
Title: Scattering of Ions at a Rippled Shock
Authors: Michael Gedalin, Nikolai V. Pogorelov, Vadim Roytershteyn
Source: The Astrophysical Journal, Vol 951, Iss 1, p 65 (2023)
Publisher Information: IOP Publishing, 2023.
Publication Year: 2023
Collection: LCC:Astrophysics
Subject Terms: Shocks, Astrophysics, QB460-466
More Details: In a collisionless shock the energy of the directed flow is converted to heating and acceleration of charged particles, and to magnetic compression. In low-Mach number shocks the downstream ion distribution is made of directly transmitted ions. In higher-Mach number shocks ion reflection is important. With the increase of the Mach number, rippling develops, which is expected to affect ion dynamics. Using ion tracing in a model shock front, downstream distributions of ions are analyzed and compared for a planar stationary shock with an overshoot and a similar shock with ripples propagating along the shock front. It is shown that rippling results in the distributions, which are substantially broader and more diffuse in the phase space. Gyrotropization is sped up. Rippling is able to generate backstreaming ions, which are absent in the planar stationary case.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1538-4357
Relation: https://doaj.org/toc/1538-4357
DOI: 10.3847/1538-4357/acd63c
Access URL: https://doaj.org/article/bc04081899e6412082c195865c7741a3
Accession Number: edsdoj.bc04081899e6412082c195865c7741a3
Database: Directory of Open Access Journals
More Details
ISSN:15384357
DOI:10.3847/1538-4357/acd63c
Published in:The Astrophysical Journal
Language:English