Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988baicz..39...86b&link_type=abstract
Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 39, no. 2, Jan. 1988, p. 86-92.
Astronomy and Astrophysics
Astronomy
8
Magnetohydrodynamic Flow, Solar Activity, Solar Cycles, Solar Flares, Solar Magnetic Field, Solar Rotation, Coronal Holes, Morphology, Solar Longitude, Southern Hemisphere
Scientific paper
The principal behavior of local and background magnetic fields accompanying the formation of the white-light flare region of April 1984, and the distribution of the fields on the solar surface during the two last submaxima of the 21st cycle of activity (from March 1983 to February 1985) are discussed. The large-scale activity of the fields is summarized. It is found that the main changes in the background field distribution on the time scale of rotations are caused by the almost rigid body Carrington rotation and by the influence of differential rotation on their weak remnants. It is suggested that the fields may be related to the very large elements of convection, and/or to the maxima of vorticity in the photospheric plasma flow.
Bumba Vaclav
Geztelyi L.
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