Magnetic field suppression in collision-less shocks generated during the expansion of a dense plasma into a rarefied mediu
2013 (English)In: EAS Publications Series, ISSN 1633-4760, Vol. 58, 33-36 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
E D P Sciences , 2013. Vol. 58, 33-36 p.
laboratory astrophysics, simulations
Fusion, Plasma and Space Physics
IdentifiersURN: urn:nbn:se:liu:diva-92818DOI: 10.1051/eas/1258004ISBN: 978-2-7598-0941-7OAI: oai:DiVA.org:liu-92818DiVA: diva2:622789
ECLA: European Conference on Laboratory Astrophysics, Paris, France
FunderSwedish Research Council, 2010-4063