On the thermal structure of sunspots

Details On the thermal structure of sunspots On the thermal structure of sunspots

Nov 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976mnras.177..409c&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 177, Nov. 1976, p. 409-414.

Physics

34

Convective Heat Transfer, Magnetohydrodynamic Waves, Solar Physics, Solar Temperature, Sunspots, Thermodynamic Properties, Energy Dissipation, Heat Flux, Inhibition, Kinetic Energy, Solar Magnetic Field, Wave Generation

Scientific paper

The Biermann (1941) theory of sunspot cooling through inhibition of convection is compared with Parker's (1974) theory of cooling through the conversion of heat into Alfven waves. Parker's criticisms of the inhibition theory are shown to lose most of their force when a more realistic version of that theory is considered. Parker's own theory is shown to be unacceptable on both hydromagnetic and thermodynamic grounds, as well as because it does not explain where the missing energy reappears. There appears to be no reason to abandon the inhibition theory.

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