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Structural and Evolutionary Features of Flare-Producing Active Regions During 1988-1990

Published online by Cambridge University Press:  12 April 2016

A. A. Golovko
A. A. Golovko*
Affiliation:
Institute of Solar-Terrestrial Physics (ISTP AT RAS SD), Irkutsk - 33, P.O.Box 4026, Russia664033

Extract

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During the period of high solar activity (1988-1990) the Sayan and Baikal Observatories of the ISTP carried out observations of the chromosphere in the H-alpha line, the photosphere and of sunspot magnetic fields; at the Siberian Solar Radio Telescope, solar radio emission observations at 5.2 cm wavelength were made. Using those observations a study is made of the evolution of “centers of magnetic activity” (Bumba, 1986) in nine active regions with different flare productivity, for which the most complete observations were available. In three cases (NOAA Nos. 5229, 5643 and 5669) they were the targets of the cooperative international Max’91 program.

Type
Session 6. Flares and Transients
Information
International Astronomical Union Colloquium , Volume 141: The Magnetic and Velocity Fields of Solar Active Regions , 1993 , pp. 388 - 390
Copyright
Copyright © Astronomical Society of the Pacific 1993

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