Abstract Observations of two flares, an M 2.2 event on 16 December, 1991 and the precursor to an X1 flare on 15 November, 1991 are presented. Spectra obtained with the Bragg Crystal Spectrometer (BCS) are compared with data from the Hard and Soft X-ray Telescopes (HXT, SXT) and the Wide Band Spectrometer (WBS) on the satellite. For both events the creation of upflowing plasma is detected. While the first event seems to conform well to the chromospheric evaporation model for high temperature plasma production, the behaviour for the second event is more complex.


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    Title :

    Yohkoh observations of plasma upflows during solar flares


    Contributors:
    Culhane, J.L. (author) / Phillips, A.T. (author) / Pike, C.D. (author) / Fludra, A. (author) / Bentley, R.D. (author) / Bromage, B. (author) / Doschek, G.A. (author) / Hiei, E. (author) / Inda, M. (author) / Mariska, J.T. (author)

    Published in:

    Advances in Space Research ; 13 , 9 ; 303-306


    Publication date :

    1993-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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