Other
Scientific paper
Apr 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980alab.reptq....s&link_type=abstract
Final Report Alabama Univ., Huntsville.
Other
Solar Activity, Solar Corona, Solar Simulation, Stellar Mass Ejection, Magnetohydrodynamics, Mathematical Models, Solar Flares, Solar Magnetic Field, Solar Prominences, Steady State
Scientific paper
A model is developed for the formation and propagation through the lower corona of the loop-like coronal transients in which mass is ejected from near the solar surface to the outer corona. It is assumed that the initial state for the transient is a coronal streamer. The initial state for the streamer is a polytropic, hydrodynamic solution to the steady-state radial equation of motion coupled with a force-free dipole magnetic field. The numerical solution of the complete time-dependent equations then gradually approaches a stationary coronal streamer configuration. The streamer configuration becomes the initial state for the coronal transient. The streamer and transient simulations are performed completely independent of each other. The transient is created by a sudden increase in the pressure at the base of the closed-field region in the streamer configuration. Both coronal streamers and coronal transients are calculated for values of the plasma beta (the ratio of thermal to magnetic pressure) varying from 0.1 to 100.
Steinolfson Richard S.
Wu Shi Tsan
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