@article{Hellinger:2017:1538-4357/aa67e0,
author = {Hellinger, P and Landi, S and Matteini, L and Verdini, A and Franci, L},
doi = {1538-4357/aa67e0},
journal = {ASTROPHYSICAL JOURNAL},
title = {Mirror Instability in the Turbulent Solar Wind},
url = {http://dx.doi.org/10.3847/1538-4357/aa67e0},
volume = {838},
year = {2017}
}

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TY  - JOUR
AB  - The relationship between a decaying strong turbulence and the mirror instability in a slowly expanding plasma is investigated using two-dimensional hybrid expanding box simulations. We impose an initial ambient magnetic field perpendicular to the simulation box, and we start with a spectrum of large-scale, linearly polarized, random-phase Alfvénic fluctuations that have energy equipartition between kinetic and magnetic fluctuations and a vanishing correlation between the two fields. A turbulent cascade rapidly develops, magnetic field fluctuations exhibit a Kolmogorov-like power-law spectrum at large scales and a steeper spectrum at sub-ion scales. The imposed expansion (taking a strictly transverse ambient magnetic field) leads to the generation of an important perpendicular proton temperature anisotropy that eventually drives the mirror instability. This instability generates large-amplitude, nonpropagating, compressible, pressure-balanced magnetic structures in a form of magnetic enhancements/humps that reduce the perpendicular temperature anisotropy.
AU  - Hellinger,P
AU  - Landi,S
AU  - Matteini,L
AU  - Verdini,A
AU  - Franci,L
DO  - 1538-4357/aa67e0
PY  - 2017///
SN  - 0004-637X
TI  - Mirror Instability in the Turbulent Solar Wind
T2  - ASTROPHYSICAL JOURNAL
UR  - http://dx.doi.org/10.3847/1538-4357/aa67e0
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000399137400007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/61925
VL  - 838
ER  - 

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