Astronomy and Astrophysics – Astrophysics
Scientific paper
1997-03-20
Astronomy and Astrophysics
Astrophysics
5 pp., tex, 1 figure
Scientific paper
10.1103/PhysRevLett.80.1580
The gamma-ray burst source GRB970228 has been observed after a delay of 8--12 hours in X-rays and after one day in visible and near infrared light. This marks the first detection of emission at lower frequencies following the gamma-ray observation of a GRB and the first detection of any visible counterpart to a GRB. We consider possible delayed visible and X-ray emission mechanisms, and conclude that the intrinsic gamma-ray activity continued at a much reduced intensity for at least a day. There are hints of such continued activity in other GRB, and future observations can decide if this is true of GRB in general. The observed multi-band spectrum of GRB970228 agrees with the predictions of relativistic shock theory when the flux is integrated over a time longer than that required for a radiating electron to lose its energy.
Katz Jonathan I.
Piran Tsvi
Sari Re'em
No associations
LandOfFree
Implications of the Visible and X-Ray Counterparts to GRB970228 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 Implications of the Visible and X-Ray Counterparts to GRB970228, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Implications of the Visible and X-Ray Counterparts to GRB970228 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-653109