Magnetic field suppression in collision-less shocks generated during the expansion of a dense plasma into a rarefied medium

G. Sarri, M. E. Dieckmann, I. Kourakis, M. Borghesi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A two-dimensional numerical study of the expansion of a dense plasma through a more rarefied one is reported. The electrostatic ion-acoustic shock, which is generated during the expansion, accelerates the electrons of the rarefied plasma inducing a superthermal population which reduces electron thermal anisotropy. The Weibel instability is therefore not triggered and no self-generated magnetic fields are observed, in contrast with published theoretical results dealing with plasma expansion into vacuum.

Original languageBritish English
Title of host publicationECLA - European Conference on Laboratory Astrophysics
Pages33-36
Number of pages4
DOIs
StatePublished - 2012
Event1st European Conference on Laboratory Astrophysics, ECLA - Paris, France
Duration: 26 Sep 201130 Sep 2011

Publication series

NameEAS Publications Series
Volume58
ISSN (Print)1633-4760
ISSN (Electronic)1638-1963

Conference

Conference1st European Conference on Laboratory Astrophysics, ECLA
Country/TerritoryFrance
CityParis
Period26/09/1130/09/11

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