GRB 021004 host galaxy and environment with X-shooter

作者：Vergani S D^*; Piranomonte S; Petitjean P; Flores H; Goldoni P; Rodrigues M; Hammer F; Covino S

来源：Astronomische Nachrichten, 2011, 332(3): 292-294.

DOI：10.1002/asna.201111538

• galaxies: high-redshift
• galaxies: ISM
• gamma rays: bursts

We report preliminary results of the observation of the GRB 021004 host galaxy and field obtained with the new VLT/X-shooter spectrograph. Thanks to the X-shooter wide spectral range we could detect many emission lines associated to the GRB host at z = 2.33102. Moreover we identify [O III]lambda lambda 4959, 5007 angstrom emission lines at z = 2.33184 associated with a close-by galaxy possibly interacting with the GRB host. We do not detect any counterpart of the foreground absorbers found in the afterglow spectra of GRB 021004.

• 出版日期2011-3