Is the galactic corona produced by galactic flares?

Details Is the galactic corona produced by galactic flares? Is the galactic corona produced by galactic flares?

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979stin...7930130s&link_type=abstract

Unknown

Physics

Coronas, Flares, Galactic Rotation, Galaxies, Interstellar Magnetic Fields, Heating, Magnetohydrodynamic Stability, Plasma Temperature, Rotating Disks, Solar Flares

Scientific paper

The effect of the differential rotation of the disk of the Galaxy on magnetic field which penetrates the disk is considered. The magnetic field will be progressively distorted from a potential (current-free) form and will at some stage become unstable. It is expected that an MHD instability, a resistive instability, or a combination of the two, will result in the release of the excess magnetic energy and that part of the released energy will be converted into heat. By estimating the energy release and the rate at which this process will occur and by assuming that this energy input is balanced by radiation, estimates were obtained of the parameters of the resulting plasma. It appears that this process alone can heat a galactic corona to temperatures of order 10 to the 6th power K.

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