Discovery of a redshifted Iron K-line in the X-ray afterglow of GRB 000214

Details Discovery of a redshifted Iron K-line in the X-ray afterglow of GRB 000214 Discovery of a redshifted Iron K-line in the X-ray afterglow of GRB 000214

2000-10-11

arxiv.org/abs/astro-ph/0010221v1

Astrophys.J. 545 (2000) L39

Astronomy and Astrophysics

Astrophysics

13 pages, LaTeX, 3 figures, accepted for publication on ApJ Letters

Scientific paper

10.1086/317328

We report the detection (3 sigma significance level) of a strong iron emission line in the X-ray spectrum of the afterglow of GRB 000214 (``Valentine's Day Burst'') observed by BeppoSAX. An emission line feature was observed with a centroid energy of 4.7+/-0.2 keV which, if interpreted as K-alpha emission from hydrogen-like iron, corresponds to a redshift of z=0.47. The observed intensity (EW ~2 keV) and duration (tens of hours) of the line give information on the distance, from the burst region, of the emitting material (R>3x10^15 cm) and its mass (M>1.4 solar mass). These results are not easily reconciled with the binary merger and hypernova models for gamma ray bursts.

Affiliated with

Also associated with

No associations

Rating

Discovery of a redshifted Iron K-line in the X-ray afterglow of GRB 000214 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 Discovery of a redshifted Iron K-line in the X-ray afterglow of GRB 000214, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discovery of a redshifted Iron K-line in the X-ray afterglow of GRB 000214 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-406700