Mathematics
Scientific paper
Nov 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.348..253p&link_type=abstract
In ESA, Proceedings of the First SOHO Workshop: Coronal Streamers, Coronal Loops, and Coronal and Solar Wind Composition p 253-2
Mathematics
1
Coronal Loops, Magnetohydrodynamic Waves, Mathematical Models, Solar Heating, Magnetic Fields, Magnetohydrodynamics, Space Plasmas, Time Dependence
Scientific paper
The efficiency and time scales of Alfven wave heating of solar coronal loops is investigated by means of numerical simulations in the framework of both linear and nonlinear dissipative magnetohydrodynamics. The coronal loops are modeled by cylindrical plasma columns that are excited by waves that are incident in them. Parameter studies are presented of the efficiency of the coupling of the external source to the coronal loop plasma, the fraction of the power supplied by the external source that is actually absorbed and converted into heat, the quality of the resonances that occur, the basic time scales of the resonant absorption mechanism, and the temporal evolution of the energetics of the driven dissipative system. The results of these investigations indicate that resonant absorption is a viable heating mechanism for solar coronal loops.
Goedbloed J. P.
Poedts Stefaan
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