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Solar Flares in Centers of Activity with No Spots

Published online by Cambridge University Press:  12 April 2016

Michal Šeršeň
Michal Šeršeň*
Affiliation:
Comenius University, Department of Astronomy and Astrophysics, 842 15 Bratislava, Czechoslovakia

Abstract

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This paper presents a study of 9 “spotless” flares of H-alpha importance 1 or more which occurred in the years 1981-1990. The flares occurred in positions where no active region has been reported. All the flares were found to occur in evident and well-localized plages, large and diffusive plages as well as in regions where no plage was observed. Only one of all the flares studied in the paper was reported to be accompanied by the filament activity.

Type
Session 6. Flares and Transients
Information
International Astronomical Union Colloquium , Volume 141: The Magnetic and Velocity Fields of Solar Active Regions , 1993 , pp. 384 - 387
Copyright
Copyright © Astronomical Society of the Pacific 1993

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