Soft Gamma-Ray Bursts in the BATSE data

Details Soft Gamma-Ray Bursts in the BATSE data Soft Gamma-Ray Bursts in the BATSE data

2005-05-24

arxiv.org/abs/astro-ph/0505490v1

Astronomy and Astrophysics

Astrophysics

4 pages, 4 figures, to appear in the Proceedings of "Rencontres de Moriond: Very High Energy Phenomena in the Universe" La Thu

Scientific paper

We performed the scan of the BATSE DISCLA records inspecting 25-50 keV range to pick up soft GRBs. We applied the same technique as in our previous (Stern et al. 2001) scan in the 50-300 keV range. We scanned about 1.8 year of the data and found 30 new gamma-ray burst (GRB)s. The total number of soft GRBs in the BATSE data, with the count rate in the 25-50 keV range higher than in the 50-300 keV range, is only 4%. There are about two extremely soft events per year which are invisible about 50 keV and which could constitute a new class of events separate from the GRB phenomenon. We also show that X-ray flashes (XRFs) detected by BeppoSAX have a hardness ratio very similar to that of normal GRBs, supporting a view that XRFs and GRBs are a single phenomenon with a wide spectral variety.

Affiliated with

Also associated with

No associations

Rating

Soft Gamma-Ray Bursts in the BATSE data 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 Soft Gamma-Ray Bursts in the BATSE data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Soft Gamma-Ray Bursts in the BATSE data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-73400