Intense magnetic fields and umbral dots

Details Intense magnetic fields and umbral dots Intense magnetic fields and umbral dots

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976soph...50..329r&link_type=abstract

Solar Physics, vol. 50, Nov.-Dec. 1976, p. 329-332.

Physics

7

Solar Atmosphere, Solar Magnetic Field, Solar Temperature, Temperature Gradients, Umbras, Astronomical Models, Hydrostatic Pressure, Magnetohydrodynamic Waves, Magnetohydrostatics

Scientific paper

Intense magnetic fields (of one or two kilogauss) situated in a background of weak field and umbral dots (regions of weak field) situated in a background of intense field (the sunspot) have both received considerable, though largely unrelated, discussion in the recent literature. It is suggested that the two phenomena may in fact be less disparate than hitherto presumed. Applying a simple (hydrostatic) model calculation to both phenomena and assuming temperature differences to be constant with height, the depth of each of these structures can be estimated.

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