Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-02-09
Astron.Astrophys. 373 (2001) 796-804
Astronomy and Astrophysics
Astrophysics
9 pages, 4 figures. Accepted for publication in the A&A main journal
Scientific paper
10.1051/0004-6361:20010531
We present the discovery of the Optical Transient (OT) of the long-duration gamma-ray burst GRB000926. The optical transient was detected independently with the Nordic Optical Telescope and at Calar Alto 22.2 hours after the burst. At this time the magnitude of the transient was R = 19.36. The transient faded with a decay slope of about 1.7 during the first two days after which the slope increased abruptly (within a few hours) to about 2.4. The light-curve started to flatten off after about a week indicating the presence of an underlying extended object. This object was detected in a deep image obtained one month after the GRB at R=23.87+-0.15 and consists of several compact knots within about 5 arcsec. One of the knots is spatially coincident with the position of the OT and hence most likely belongs to the host galaxy. Higher resolution imaging is needed to resolve whether all the compact knots belong to the host galaxy or to several independent objects. In a separate paper we present a discussion of the optical spectrum of the OT, and its inferred redshift (Moller et al. in prep.).
Andersen Michael I.
Burud Ingunn
Canzian Blaise
Castro Cerón José María
Castro-Tirado Alberto J.
No associations
LandOfFree
The optical afterglow and host galaxy of GRB000926 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 optical afterglow and host galaxy of GRB000926, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The optical afterglow and host galaxy of GRB000926 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-612900