Other
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...180.4501m&link_type=abstract
American Astronomical Society, 180th AAS Meeting, #45.01; Bulletin of the American Astronomical Society, Vol. 24, p.802
Other
Scientific paper
Since the launch of the Compton Gamma-Ray Observatory in April, 1991, a number of solar flares have been observed by COMPTEL within its ~ 1 steradian field-of-view. At least one of these, that of June 15, 1991, showed extended gamma -ray emission which lasted for several tens of minutes after the impulsive phase of the flare. This particular event was unusual in that the impulsive phase of the flare occured during orbital night; consequently, COMPTEL did not begin collecting data from the sun until some 50 minutes after the onset of the flare. Nonetheless, gamma -rays (including 2.2 MeV line emission) were detected for the subsequent 40 minute period, possibly indicating a very extended phase of particle acceleration. The present status of the analysis of these data, including that of both the gamma -ray and neutron emissions, will be presented. The imaging nature of the COMPTEL experiment also facilitates a search for extended flare emission from other events which might be difficult to detect with traditional (non-imaging) gamma -ray detectors. The prelimary results from such a search will also be presented.
Bennett Kevin
Collmar Werner
Connors Alanna
de Vries Chris
den Herder Jan Willem
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