2002A&A...396L..21M


Query : 2002A&A...396L..21M

2002A&A...396L..21M - Astronomy and Astrophysics, volume 396, L21-24 (2002/12-3)

Absorption systems in the spectrum of GRB 021004.

MOLLER P., FYNBO J.P.U., HJORTH J., THOMSEN B., EGHOLM M.P., ANDERSEN M.I., GOROSABEL J., HOLLAND S.T., JAKOBSSON P., JENSEN B.L., PEDERSEN H., PEDERSEN K. and WEIDINGER M.

Abstract (from CDS):

We report on a 3600s spectrum of GRB 021004 obtained with the Nordic Optical Telecope on La Palma 10.71 hours after the burst. We identify absorption lines from five systems at redshifts 1.3806, 1.6039, 2.2983, 2.3230, and 2.3292. In addition we find an emission line which, if due to Lyα from the host galaxy, gives a redshift of 2.3351. The nearest absorber is blueshifted by 530km/s with respect to this line, consistent with shifts seen in Damped Lyα and Lyman-Break galaxies at similar redshifts. The emission line flux is 2.46±0.50x10–16erg/s/cm2. Some of the absorption systems are ``line-locked'', an effect often seen in QSO absorption systems believed to originate close to the QSO central engine.

Abstract Copyright:

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

Nomenclature: Text: [MFH2002] GRB 021004 abs N.NNNN N=5.

Simbad objects: 4

goto Full paper

goto View the references in ADS

Number of rows : 4
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 GRB 021004 gB 00 26 54.68 +18 55 41.6           ~ 529 0
2 GRB 971214 gB 11 56 26.4 +65 12 01           ~ 437 1
3 GRB 000926 gB 17 04 15 +51 46.0           ~ 351 0
4 SN 1998bw SN* 19 35 03.17 -52 50 46.1   14.09       SNIc 1724 2

To bookmark this query, right click on this link: simbad:objects in 2002A&A...396L..21M and select 'bookmark this link' or equivalent in the popup menu


2022.05.21-23:19:48

© Université de Strasbourg/CNRS

    • Contact