The alpha-effect generated by random Alfven waves in a stratified atmosphere and particle acceleration

Details The alpha-effect generated by random Alfven waves in a stratified atmosphere and particle acceleration The alpha-effect generated by random Alfven waves in a stratified atmosphere and particle acceleration

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...323..414n&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 323, Dec. 1, 1987, p. 414-421.

Astronomy and Astrophysics

Astrophysics

Atmospheric Stratification, Magnetohydrodynamic Waves, Particle Acceleration, Ponderomotive Forces, Random Processes, Solar Atmosphere, Magnetic Field Configurations, Solar Cosmic Rays, Stellar Models, Vertical Distribution

Scientific paper

The mean electromotive and ponderomotive forces generated by random Alfvén waves propagating along the vertical magnetic field in a stratified atmosphere are evaluated using the simple, two-layer model of the solar atmosphere. It is shown that the α-effect can exist due to the stratification of the medium even if the magnetic diffusivity is zero and that the α-effect in the chromosphere is a possible acceleration mechanism of solar cosmic rays.

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