Solar Maximum Mission observations have been used to study the origin and amount of energy, mechanism of storage and release, and conditions for the occurrence of solar flares, and some results of these studies as they pertain to homologous flares are briefly discussed. It was found that every set of flares produced 'rafales' of homologous flares, i.e., two, three, four, or more flares separated in time by an hour or less. No great changes in macroscopic photospheric patterns were observed during these flaring periods. A quantitative brightness parameter of the relation between homologous flares is defined. Scale changes detected in the dynamic spectrum of flare sites are in good agreement with a theoretical suggestion by Sturrock. Statistical results for different homologous flare active regions show the existence in homologous flaring areas of a 'pivot' of previous filaments interpreted as a signature of an anomaly in the solar rotation.


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    Title :

    Flare build-up study - Homologous flares group. I


    Contributors:
    Martres, M.-J. (author) / Mein, N. (author) / Mouradian, Z. (author) / Rayrole, J. (author) / Schmieder, B. (author) / Simon, G. (author) / Soru-Escaut, I. (author) / Woodgate, B. E. (author)

    Published in:

    Publication date :

    1984-01-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Flare build-up study — Homologous flares group — Part I

    Martres, M.-J. / Woodgate, B.E. / Mein, N. et al. | Elsevier | 1984




    Activity in the homologous flare site

    Mein, N. / Martres, M.-J. / Simon, G. et al. | Elsevier | 1984


    About the onsets of closely-consecutive homologous flares

    Martres, M.J. / Mein, N. / Mein, P. et al. | Elsevier | 1983