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 proceedingOther chapter contribution

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 languageEnglish
Title of host publicationEAS Publications Series
Pages33-36
Number of pages4
Volume58
DOIs
Publication statusPublished - 01 Jan 2012

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