The UVSP data obtained in the previous maximum activity cycle show the frequent appearance of flaring events in the UV. In many cases these flaring events are characterized by at least two footpoints which show compact impulsive non-simultaneous brightenings and a fainter but clearly observed arch developes between the footpoints. These arches and footpoints are observed in line corresponding to different temperatures, as Lyman alpha, N V, and C IV, and when observed above the limb display large Doppler shifts at some stages. The size of the arches can be larger than 20 arcsec.


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    Title :

    Arches Showing Uv Flaring Activity


    Contributors:

    Publication date :

    1988


    Size :

    4 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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