2001A&A...373..796F


C.D.S. - SIMBAD4 rel 1.7 - 2020.08.09CEST04:12:52

2001A&A...373..796F - Astronomy and Astrophysics, volume 373, 796-804 (2001/7-3)

The optical afterglow and host galaxy of GRB 000926.

FYNBO J.U., GOROSABEL J., DALL T.H., HJORTH J., PEDERSEN H., ANDERSEN M.I., MOLLER P., HOLLAND S., SMAIL I., KOBAYASHI N., ROL E., VREESWIJK P., BURUD I., JENSEN B.L., THOMSEN B., HENDEN A., VRBA F., CANZIAN B., CASTRO CERON J.M., CASTRO-TIRADO A.J., CLINE T., GOTO M., GREINER J., HANSKI M.T., HURLEY K., LUND N., PURSIMO T., OSTENSEN R., SOLHEIM J., TANVIR N. and TERADA H.

Abstract (from CDS):

We present the discovery of the Optical Transient (OT) of the long-duration gamma-ray burst GRB 000926. 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.).

Abstract Copyright:

Journal keyword(s): cosmology: observations - gamma rays: bursts

Nomenclature: Text: [FGD2001] GRB 000926 Host G N=1. Table 1: [FGD2001] Star A (Nos A-D).

Simbad objects: 16

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Number of rows : 16

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9478 1
2 QSO B0151+0448 QSO 01 53 53.8925288742 +05 02 57.111954574   18.04 17.63     ~ 105 2
3 [RKV2003] QSO J0153+0502 abs 1.9342 DLA 01 53 53.92 +05 02 57.3           ~ 6 0
4 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14874 1
5 GRB 970508 gB 06 53 49.2 +79 16 19           ~ 840 1
6 GRB 990510 gB 13 38 07.64 -80 29 48.8           ~ 465 1
7 GRB 990123 gB 15 25 29 +44 45.0     8.95     ~ 963 1
8 GRB 000301C gB 16 20 18.5 +29 26 35           ~ 340 2
9 [CDK2000] GRB 000926 abs 2.0369 G 17 04 09.8 +51 47 11           ~ 11 1
10 GRB 000926 gB 17 04 15 +51 46.0           ~ 341 2
11 SN 1998bw SN* 19 35 03.17 -52 50 46.1   14.09       SNIc 1653 2
12 [FMW99] S4 G ~ ~           ~ 5 0
13 [FGD2001] Star D * ~ ~   20.822 19.459 18.529 17.694 ~ 1 0
14 [FGD2001] Star C * ~ ~ 18.920 19.047 18.449 18.026 17.655 ~ 1 0
15 [FGD2001] Star B * ~ ~ 19.596 18.662 17.508 16.811 16.265 ~ 1 0
16 [FGD2001] Star A * ~ ~ 19.070 18.499 17.635 17.025 16.553 ~ 1 0

    Equat.    Gal    SGal    Ecl

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2020.08.09-04:12:52

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