Computer Science – Sound
Scientific paper
Apr 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.203..117h&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 203, Apr. 1983, p. 117-123.
Computer Science
Sound
14
Coronas, Galactic Structure, Interstellar Gas, Magnetohydrodynamic Waves, Plasma Heating, Abundance, Astronomical Models, Energy Dissipation, Gas Density, Halos, Plasma Temperature, Stellar Winds, Wave Degradation
Scientific paper
The rate at which hydromagnetic wave energy is dissipated in a galactic corona will be a very sensitive function of temperature when the dissipation occurs primarily through the non-linear decay of Alfvén waves by the production of sound waves. In wave driven wind models of a corona the large dependence of the dissipation rate on temperature can lead to the temperature being an extremely slowly varying function of density, in harmony with the very uniform observed C IV to Si IV abundance ratios in the galactic halo gas.
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