Thin-shell instability in collisionless plasma
2015 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, ISSN 1539-3755, E-ISSN 1550-2376, Vol. 92, no 3, 031101- p.Article in journal (Refereed) Published
Thin-shell instability is one process which can generate entangled structures in astrophysical plasma on collisional (fluid) scales. It is driven by a spatially varying imbalance between the ram pressure of the inflowing upstream plasma and the downstreams thermal pressure at a nonplanar shock. Here we show by means of a particle-in-cell simulation that an analog process can destabilize a thin shell formed by two interpenetrating, unmagnetized, and collisionless plasma clouds. The amplitude of the shells spatial modulation grows and saturates after about ten inverse proton plasma frequencies, when the shell consists of connected piecewise linear patches.
Place, publisher, year, edition, pages
American Physical Society , 2015. Vol. 92, no 3, 031101- p.
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:liu:diva-121434DOI: 10.1103/PhysRevE.92.031101ISI: 000360334200001OAI: oai:DiVA.org:liu-121434DiVA: diva2:855123
Funding Agencies|CRAL(ENS); French National Program of High Energy (PNHE); Ministerio de Educacion y Ciencia, Spain [ENE2013-45661-C2-1-P]; Junta de Comunidades de Castilla-La Mancha [PEII-2014-008-P]2015-09-182015-09-182015-10-15Bibliographically approved