{
  "bibcode": "2017GCN.20686....1K",
  "body": "T. Kruehler, P. Schady, J. Greiner (all MPE Garching) and\nN. R. Tanvir (U. Leicester) report:\n\nWe observed the optical counterpart (Troja et al. GCN 20681,\nMalesani et al. GCN 20683, Schady et al. GCN 20684) of GRB 170214A\n(Mailyan and Meegan, GCN 20675, Racusin et al. GCN 20676)\nwith the ESO Very Large Telescope UT 2 (Kueyen) equipped\nwith the X-shooter spectrograph, covering the wavelength range\n3200-20000 AA. Observations started at 08:18 UT on 2017-02-16,\nroughly 40.7 hours after the burst and consisted of 6 exposures\nof 600 s each.\n\nOur spectrum has a low signal-to-noise ratio with no signal being\ndetected bluewards of around 5800 AA due to a combination of\nhigh background from the bright moon and faint afterglow.\nIn the red part, the spectrum exhibits four marginal absorption\nfeatures, which are consistent with coming from various FeII\ntransitions at a common redshift of z=2.53.\n\nWe acknowledge excellent support from the ESO observing staff\nin Paranal, in particular Marcela Espinoza, Cedric Ledoux,\nand Stephane Brillant.",
  "circularId": 20686,
  "createdOn": 1487263319000,
  "email": "kruehler@mpe.mpg.de",
  "subject": "GRB 170214A: VLT/X-shooter spectroscopy and tentative redshift",
  "submitter": "Thomas Kruehler at MPE Garching  <kruehler@mpe.mpg.de>",
  "eventId": "GRB 170214A"
}