Abstract We have selected four widely different flares from the early period of operations of the Hard X-Ray Imaging Spectrometer (HXIS) on SMM to illustrate the characteristic imaging properties of this experiment. For the small flare of April 4, 1980, we demonstrate the instrument's capability for locating a compact source. In the weak, but extensive, flare of April 6 we show how well the instrument can display spatial structure, and also the low level of the instrument background. In the 1B flare of April 7 we are able to locate positions of the X-ray emission in the soft and hard channels, and estimate the positional variations of the emission patches. Finally, in the IN flare of April 10, which produced the strongest hard X-ray burst we have seen so far, we repeat some of the studies made for the April 7 event, and also demonstrate the capability of the HXIS instrument to study the development, with high time resolution, of individual 8″ × 8″ elements of the flare.


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    Title :

    Solar maximum mission experiment: Early results of the hard X-ray imaging experiment


    Contributors:
    Boelee, A. (author) / de Jager, C. (author) / Duijveman, A. (author) / Galama, M. (author) / Hoekstra, R. (author) / Hoyng, P. (author) / Imhof, J.P. (author) / Lafleur, H. (author) / Maseland, H.V.A.M. (author) / Mels, W.A. (author)

    Published in:

    Advances in Space Research ; 1 , 13 ; 255-266


    Publication date :

    1981-01-01


    Size :

    12 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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