Abstract The ability to measure solar flare neutrons by the COMPTEL γ-ray telescope on-board the Compton Gamma Ray Observatory has been demonstrated during the observations of the powerful solar flares of June 1991 from Active Region 6659. We present intensity-time profiles and count rate spectra from the impulsive X10 flare on 1991 June 19 and the prolonged X12+ flare on 1991 June 15. The emission of neutrons during the 9 June flare is coincident in time with the impulsive γ-ray emission, while the neutron emission during the 15 June flare takes place from the time of the X-ray maximum and for at least 30 minutes thereafter. The detected neutrons can also be used to image the Sun in heavy particles, the first time a celestial object has been imaged in radiation other than electromagnetic radiation.


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    Title :

    Comptel measurements of solar flare neutrons


    Contributors:
    Ryan, J. (author) / Bennett, K. (author) / Debrunner, H. (author) / Forrest, D. (author) / Lockwood, J. (author) / Loomis, M. (author) / McConnell, M. (author) / Morris, D. (author) / Schönfelder, V. (author) / Swanenburg, B.N. (author)

    Published in:

    Advances in Space Research ; 13 , 9 ; 255-258


    Publication date :

    1993-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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