We have studied the relation between flux emergence and flare activity in the active region NOAA 7260, using images from the Soft X-ray Telescope (SXT) aboard the Yohkoh spacecraft and other supporting ground-based data. It is found that microflares start around the time of flux emergence as recorded in white-light data, which generally precedes a major flare by several hours. We interpret the microflares as due to fast reconnection that takes place intermittently in the slow reconnection stage while more energy is accumulated in preparation for a larger flare.


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    Titel :

    Emerging flux and flares in NOAA 7260


    Beteiligte:
    Nitta, N. (Autor:in) / Van Driel-Gesztelyi, L. (Autor:in) / Leka, K. D. (Autor:in) / Shibata, K. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1996-01-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Emerging Flux and Flares in NOAA 7260

    Nitta, N. | Online Contents | 1995


    Emerging Flux and Flares in NOAA 7260

    Nitta, N. / Van Driel-Gesztelyi, L. / Leka, K. D. et al. | British Library Conference Proceedings | 1995


    Emerging Flux and Flares in NOAA 7260

    Nitta, N. | Online Contents | 1996


    Flares in Active Region NOAA 7260

    Nitta, N. / Van Driel-Gesztelyi, L. / Leka, K. D. et al. | British Library Conference Proceedings | 1994


    Homologous flares and the evolution of NOAA Active Region 2372

    Strong, K. T. / Smith, J. B., Jr. / Mccabe, M. K. et al. | NTRS | 1984