TITLE

# A nonlocal wave-wave interaction among AlfvÃ©n waves in an intermediate-Î² plasma

AUTHOR(S)
Zhao, J. S.; Wu, D. J.; Lu, J. Y.
PUB. DATE
March 2011
SOURCE
Physics of Plasmas;Mar2011, Vol. 18 Issue 3, p032903
SOURCE TYPE
DOC. TYPE
Article
ABSTRACT
A nonlocal coupling mechanism to directly transfer the energy from large-scale magnetohydrodynamic (MHD) AlfvÃ©n waves to small-scale kinetic AlfvÃ©n waves is presented. It is shown that the interaction between a MHD AlfvÃ©n wave and a reversely propagating kinetic AlfvÃ©n wave can generate another kinetic AlfvÃ©n wave, and this interaction exists in the plasmas where the thermal to magnetic pressure ratio is larger than the electron to ion mass ratio. The proposed nonlocal interaction may have a potential application to account for the observed electron scale kinetic AlfvÃ©n waves in the solar wind and solar corona plasmas.
ACCESSION #
59744098

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