{
  "bibcode": "2012GCN.13134....1K",
  "body": "T. Kruehler, J. P. U Fynbo, B. Milvang-Jensen (all DARK), N. Tanvir (U. Leicester) and P. Jakobsson (U. Iceland) report on behalf of a larger collaboration.\n\nWe observed the optical/NIR afterglow (e.g., Sbarufatti et al., GCN# 13123, Klotz et al., GCN#13124, Smith et al., GCN#13125) of the Swift GRB 120327A (Sbarufatti et al., GCN# 13123) with the VLT/UT2 equipped with the X-shooter spectrograph. Observations started around 05:03 UT on 2012-03-27, which is roughly 2.13 hrs after the trigger. Four exposures in a nodding pattern with an integration time of 600 s each were obtained. The spectrum covers an approximate wavelength range between 3100 and 23000 AA. The slit width was set to 1\" in the ultra-violet/blue arm, and 0.9\" in the visual and near-infrared arm, resulting in a resolving power range of approximately 4500-7500.\n\nPreliminary reduction of the spectrum shows a well detected continuum with several absorption features, that we identify with Ly-limit and Ly-alpha as well as absorption lines of CII/CII*, SiII/SiII*, AlI, FeII and MgII at a redshift of 2.813. This is confirms previous reports based on spectroscopy (Perley & Tanvir, GCN #13133) and photometry (Sudilovsky et al. GCN #13129).\n\nWe are grateful for the excellent support from the Paranal Observatory staff, in particular Dimitri Gadotti. We acknowledge private communication with the GROND team, in particular Vlad Sudilovsky.",
  "circularId": 13134,
  "createdOn": 1332833920000,
  "email": "tom@dark-cosmology.dk",
  "subject": "GRB 120327A: X-shooter redshift",
  "submitter": "Thomas Kruehler at Dark Cosmology Center  <tom@dark-cosmology.dk>",
  "eventId": "GRB 120327A"
}