COMPTEL Locations and Spectra of Gamma-Ray Bursts

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

In its first three years of operation, the COMPTEL instrument aboard Compton Gamma-Ray Observatory has measured the locations (mean accuracy ~ 1deg ) and spectra (0.75--30 MeV) of 18 gamma-ray bursts and continues to observe new events every ~ 1--2 months. The COMPTEL burst locations are consistent with an isotropic angular distribution of sources, yet the spatial coincidence of two of the bursts indicates the possibility of recurrence. The time-averaged COMPTEL burst spectra are consistent with a single power law model above 1 MeV with spectral index in the range 2--3. Measurement of rapid variability at MeV energies in the stronger bursts provides evidence that either the sources are nearby (within the Galaxy) or the gamma-ray emission is relativistically beamed. We review recent analysis results obtained from the existing COMPTEL burst catalog and give an update on new observations, including the on-going search for fading low-energy counterparts using rapidly-determined COMPTEL burst locations.

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 Locations and Spectra of Gamma-Ray Bursts 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 Locations and Spectra of Gamma-Ray Bursts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and COMPTEL Locations and Spectra of Gamma-Ray Bursts will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1057783

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