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Modeling of the Temperature‐Anisotropy Relaxation Time of the Earth's Magnetosheath
Author(s) -
Meister C.V.,
Besser B.,
Lebedeva V.
Publication year - 2007
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.200710051
Subject(s) - magnetosheath , physics , bow shock (aerodynamics) , solar wind , anisotropy , magnetohydrodynamic drive , computational physics , relaxation (psychology) , proton , plasma , shock wave , magnetopause , geophysics , astrophysics , magnetohydrodynamics , mechanics , optics , nuclear physics , psychology , social psychology
In the present paper, a short review of plasma waves and turbulence in the Earth's bow shock and magnetosheath is given. Magnetohydrodynamic models which are recently applied for the magnetosheath are presented. Further, results for the relaxation of the proton temperature‐anisotropy in the magnetosheath by proton pitch‐angle diffusion obtained for two different magnetohydrodynamic models are discussed. It is pointed out that the relaxation time is determined by the varying strength of the excitation of ion‐cyclotron and mirror waves in the different magnetosheath regions. Besides, there seems to be a background wave transfer from the solar wind into the magnetosheath. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)