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Detailed Reference Information
Ofman et al. 1994
Ofman, L., Davila, J.M. and Steinolfson, R.S. (1994). Nonlinear studies of coronal heating by the resonant absorption of Alfvén waves. Geophysical Research Letters 21: doi: 10.1029/94GL01416. issn: 0094-8276.

The first nonlinear study of the instability of the resonant absorption is presented in this paper. The nonlinear evolution of the resonant absorption of Alfv¿n waves in an inhomogeneous plasma is studied via solution of the time-dependent 3-D, low-&bgr;, resistive MHD equations. Highly sheared velocities that are subject to the Kelvin-Helmholtz like instability are found at the narrow dissipation layers. Three dimensional Kelvin-Helmholtz like vortices appear at and near dissipation layers and propagate along the slab of plasma. The narrow resonant heating layers are deformed by the self-consistent shear flow. In the solar active regions where the resonant absorption of Alfv¿n waves is believed to occur the instability may lead to turbulent enhancement of the dissipation parameters and account for the observed turbulent velocities inferred from the non-thermal broadening of x-ray and EUV emission lines. ¿ American Geophysical Union 1994

BACKGROUND DATA FILES

Abstract

Keywords
Solar Physics, Astrophysics, and Astronomy, Corona and transition region, Space Plasma Physics, Waves and instabilities, Space Plasma Physics, Nonlinear phenomena, Space Plasma Physics, Numerical simulation studies
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
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