Abstract Using full-disc white light photoheliograms, we have studied umbrae motion and variations in sunspot areas in a large activity complex over 4 solar rotations. On the basis of the observational data we illustrate with typical examples to what extent rapid spot motions are associated with flare occurrences.


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    Title :

    Sunspot motions and magnetic shears as precusors of flares


    Contributors:
    Dezső, L. (author) / Csepura, G. (author) / Gerlei, O. (author) / Kovács, Á. (author) / Nagy, I. (author)

    Published in:

    Publication date :

    1984-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English