Physics
Scientific paper
Dec 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979soph...64..323d&link_type=abstract
Solar Physics, vol. 64, Dec. 1979, p. 323-328.
Physics
H Alpha Line, Solar Flares, Solar Radio Bursts, Sunspots, Data Reduction, Gamma Rays, Microwave Emission, Millimeter Waves, Solar X-Rays
Scientific paper
Solar Hα-flares now reported with their distinctive visual features have been statistically examined for a period of about eight years in relation to their different characteristics, flare-burst and flare-sunspot association. Important results obtained are: (i) Integrated intensity changes from the highest to the lowest values in the order F, H, E, and D flare type, whereas, impulsiveness in the order H, F, E, and D type. (ii) Flare-burst association is frequency dependent and is highest and lowest for H and D types respectively in almost all the frequencies. (iii) Most of the flares of D, E, and F types are associated with sunspots of βp, αp, and δ configurations having field strength 1500-2500 G, while that of H type with βp and β configurations having field strength 1000-2000 G.
Das Tapas Kumar
Das Gupta M. K.
Sarkar Sanat K.
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