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Mirror instability: From quasi-linear diffusion to coherent structures

SYSNO ASEP	0323273
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Mirror instability: From quasi-linear diffusion to coherent structures
Title	Zrcadlová nestabilita: Od kvazi-lineární difuze ke koherentním strukturám
Author(s)	Hellinger, Petr (UFA-U)_{RID, ORCID} Kuznetsov, E. A. (RU) Passot, T. (FR) Sulem, P. L. (FR) Trávníček, Pavel M. (UFA-U)_{RID, ORCID}
Number of authors	5
Source Title	Geophysical Research Letters. - : Wiley - ISSN 0094-8276 Roč. 36, L06103 (2009), L06103/1-L06103/5
Number of pages	5 s.
Publication form	web - web
Language	eng - English
Country	US - United States
Keywords	Magnetosheath ; waves and instabilities ; nonlinear evolution
Subject RIV	BL - Plasma and Gas Discharge Physics
R&D Projects	IAA300420702 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	IAA300420602 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	MEB020736 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z30420517 - UFA-U, BC-A (2005-2011)
UT WOS	000264679500001
DOI	10.1029/2008GL036805
Annotation	A model for the nonlinear dynamics of mirror modes near the instability threshold is presented. By matching the quasi-linear theory for the space-averaged distribution function with a reductive perturbative description of the mirror modes, the model reproduces the early-time flattening of the distribution function and the development of magnetic humps from an initial noise, in agreement with Vlasov-Maxwell numerical simulations. It suggests a possible mechanism at the origin of the mirror structures observed in planetary magnetosheaths and in the solar wind.
Workplace	Institute of Atmospheric Physics
Contact	Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019
Year of Publishing	2009

Number of the records: 1