Kinematic Collisionless Relaxation of Ions in Supercritical Shocks

Michael Gedalin

doi:10.3389/fphy.2019.00114

Kinematic Collisionless Relaxation of Ions in Supercritical Shocks

Michael Gedalin

Department of Physics

Ben-Gurion University of the Negev

Research output: Contribution to journal › Article › peer-review

Abstract

We show that kinematic collisionless relaxation in the macroscopic electric and magnetic fields plays the main role in the formation of the downstream ion distributions in a super-critical shock with ion reflection present. It is done by comparison of a theoretically predicted magnetic profile with the magnetic profile of a shocks observed by MMS mission. It is shown that pressure balance remains the main constraint for the shock stability.

Original language	American English
Article number	114
Journal	Frontiers in Physics
Volume	7
DOIs	https://doi.org/10.3389/fphy.2019.00114
State	Published - 14 Aug 2019

Keywords

bow shock
collisionless shocks
heliospheric shocks
magnetic fields in space
particle acceleration
plasma heating

All Science Journal Classification (ASJC) codes

Biophysics
General Physics and Astronomy
Mathematical Physics
Physical and Theoretical Chemistry
Materials Science (miscellaneous)

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10.3389/fphy.2019.00114

Cite this

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abstract = "We show that kinematic collisionless relaxation in the macroscopic electric and magnetic fields plays the main role in the formation of the downstream ion distributions in a super-critical shock with ion reflection present. It is done by comparison of a theoretically predicted magnetic profile with the magnetic profile of a shocks observed by MMS mission. It is shown that pressure balance remains the main constraint for the shock stability.",

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AB - We show that kinematic collisionless relaxation in the macroscopic electric and magnetic fields plays the main role in the formation of the downstream ion distributions in a super-critical shock with ion reflection present. It is done by comparison of a theoretically predicted magnetic profile with the magnetic profile of a shocks observed by MMS mission. It is shown that pressure balance remains the main constraint for the shock stability.

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KW - collisionless shocks

KW - heliospheric shocks

KW - magnetic fields in space

KW - particle acceleration

KW - plasma heating

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Kinematic Collisionless Relaxation of Ions in Supercritical Shocks

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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