Structure of Shocks in Space Plasma

Nikolai Pogorelov, Michael Gedalin, Vadim Roytershteyn

Research output: Contribution to journalArticle

Abstract

A collisionless shock is a multi-scale object. The fine structure of shocks is determined by non-adiabatic gyrophase dependent motion of ions. At the scale of several ion convective gyroradii the ion distributions begin to gyrotropize. At thse scales Rankine-Hugoniot relations are determined by gyrotropic but anisotropic distributions. Dynamics of the solar wind protons and of significantly superthermal populations differ substantially. In this presentation, we show our preliminary results addressing these issues. We perform test-particle analyses, validate them with full-PIC simulations, and compare with observational data.
Original languageEnglish GB
Pages (from-to)177
JournalSolar Atmospheric and Interplanetary Environment (SHINE 2019), held 5-9 August, 2019 in Boulder, Colorado
StatePublished - 1 May 2019
Externally publishedYes

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