Physics
Scientific paper
Nov 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984p%26ss...32.1469a&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 32, Nov. 1984, p. 1469-1471, 1473-1477, 1479-1487 (8 ff.).
Physics
23
Dynamo Theory, Solar Flares, Sunspots, Force-Free Magnetic Fields, H Alpha Line, Magnetic Field Configurations, Solar Activity Effects, Solar Prominences, Solar Wind
Scientific paper
The author reviews some of the recent findings on large-scale magnetic fields and sunspots. Then, instead of relying on the hypothetical flux tube beneath the photosphere, he considers an amplification process of the observed large-scale fields by a dynamo process on the basis of the observed and possible photospheric shear flows. Thus, the photosphere is considered as an active medium, rather than the passive medium through which the hypothetical flux tube merely penetrates. Specifically, the author considers the dynamo process associated with vortex motions which can supply the power needed for the formation of sunspots from the observed weak field and the power needed for solar flares.
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