COMPTEL Gamma-Ray Observations of the C4 Solar Flare on 20 January 2000

Details COMPTEL Gamma-Ray Observations of the C4 Solar Flare on 20 January 2000 COMPTEL Gamma-Ray Observations of the C4 Solar Flare on 20 January 2000

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spd....31.1408r&link_type=abstract

American Astronomical Society, SPD Meeting #31, #14.08; Bulletin of the American Astronomical Society, Vol. 32, p.847

Statistics

Scientific paper

In response to a BACODINE cosmic gamma-ray burst alert, COMPTEL on the Compton Gamma Ray Observatory recorded gamma rays above 1 MeV from the C4 flare at 0221 UT 20 January 2000. Although the candidate burst was, in fact, the solar flare, the COMPTEL analysis system produced an image of the transient centered within statistics on the Sun. A preliminary combined BATSE/COMPTEL spectrum shows a bremsstrahlung continuum with a power law index of approximately -3.1, on top of which rides a nuclear line component that falls off at the expected energy of 8 MeV. Although subject to the uncertain extrapolation of the bremsstrahlung continuum, the ratio of the nuclear component to the bremsstrahlung component tends to be higher than the same ratio for the distribution of flares measured with SMM. Only one C flare exhibited gamma-ray emission above 1 MeV in the SMM atlas. However, the fact that a "normal" solar flare gamma-ray spectrum can originate from a C4 flare, throws into question the concept of a minimum flare size for proton or relativistic electron acceleration. This work was in part supported by NASA NAS5-26645, the German government 50 Q 9096 8 and the Swiss National Science Foundation 20-50697.97.

Affiliated with

Also associated with

No associations

Rating

COMPTEL Gamma-Ray Observations of the C4 Solar Flare on 20 January 2000 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with COMPTEL Gamma-Ray Observations of the C4 Solar Flare on 20 January 2000, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and COMPTEL Gamma-Ray Observations of the C4 Solar Flare on 20 January 2000 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1349679