COMPTEL gamma-ray observations of the C4 solar flare on 20 January 2000

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

3

Gamma-Ray Sources, Gamma-Ray Bursts, Spectroscopy And Spectrophotometry, X- And Gamma-Ray Telescopes And Instrumentation

Scientific paper

The ``Pre-SMM'' (Vestrand and Miller 1998) picture of gamma-ray line (GRL) flares was that they are relatively rare events. This picture was quickly put in question with the launch of the Solar Maximum Mission (SMM). Over 100 GRL flares were seen with sizes ranging from very large GOES class events (X12) down to moderately small events (M2). It was argued by some (Bai 1986) that this was still consistent with the idea that GRL events are rare. Others, however, argued the opposite (Vestrand 1988; Cliver, Crosby and Dennis 1994), stating that the lower end of this distribution was just a function of SMM's sensitivity. They stated that the launch of the Compton Gamma-ray Observatory (CGRO) would in fact continue this distribution to show even smaller GRL flares. In response to a BACODINE cosmic gamma-ray burst alert, COMPtonTELescope on the CGRO recorded gamma rays above 1 MeV from the C4 flare at 0221 UT 20 January 2000. This event, though at the limits of COMPTEL's sensitivity, clearly shows a nuclear line excess above the continuum. Using new spectroscopy techniques we were able to resolve individual lines. This has allowed us to make a basic comparison of this event with the GRL flare distribution from SMM and also compare this flare with a well-observed large GRL flare seen by OSSE. .

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

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

     

Profile ID: LFWR-SCP-O-1101962

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.