Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-01-14
Astronomy and Astrophysics
Astrophysics
Submitted to the Astrophysical Journal (Letters), 9 pages, LaTeX
Scientific paper
GRB 971214 is the third gamma ray burst for which an optical afterglow has been detected. I show that the spectrum of this afterglow (optical and X-ray) is inconsistent with the relativistic blast-wave model unless a significant source of extinction is introduced. Assuming that a single absorber exists at redshift z, I find that its V-band absorption magnitude at this redshift is A_V(z) = 1.00^{+1.55}_{-0.21} mag where z = 1.89^{+0.27}_{-0.69}. Although this redshift is only bound from below marginally, it is strongly bound from above: z < 2.50 at the 3 sigma confidence level. This range of values for the V-band absorption magnitude is too high to be consistent with absorption by either intergalactic gas or the halo of a galaxy, which implies that GRB 971214 lies either within or behind a galactic disk. Since chance alignments of galactic disks are unlikely, this absorber is probably the host galaxy of GRB 971214.
No associations
LandOfFree
The Host Galaxy of GRB 971214 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 The Host Galaxy of GRB 971214, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Host Galaxy of GRB 971214 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-169690