AbstractAn occulted solar flare occurred at about 06:07UT on 2002, November 2. The RHESSI X-ray images show two separate parts. The lower part consists of a complete loop and the upper part a coronal source which well extends above the solar limb. The loop source shrank for about 3min with a speed of ∼24kms−1 during the early impulsive phase and then expanded at ∼7kms−1, while the coronal source presented an upward motion at about 6kms−1. We obtained the temperature map of the loop source from RHESSI image spectrum. The temperature of the loop increases with altitude, indicating that the reconnection X-point of this flare is located above the loop source. However, the apparent coronal source is the top of another independent large-scale loop.


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    Title :

    The temperature map of the loop and coronal sources of an occulted solar flare


    Contributors:
    Li, Y.P. (author) / Gan, W.Q. (author)

    Published in:

    Advances in Space Research ; 39 , 9 ; 1389-1393


    Publication date :

    2007-04-03


    Size :

    5 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English