{
  "bibcode": "2015GCN.17278....1C",
  "body": "A. J. Castro-Tirado (IAA-CSIC, ISA-UMA), R. Sanchez-Ramirez, J.\nGorosabel (IAA-CSIC, UPV/EHU) and R. Scarpa (GTC), on behalf of a\nlarger collaboration, report:\n\nFollowing the detection of the short-duration GRB 150101B by Swift/BAT\n(Cummings et al. 2015, GCNC 17267) and Fermi (Stanbro et al. GCNC 17276),\nwe have obtained an optical spectrum with the 10.4 m GTC (+OSIRIS)\nstarting on Jan 4, 5:41 UT (i.e. 38.1 hr postburst), covering the\n3700-10000 A wavelength range, under poor weather conditions (passing\nclouds) and bad (>2.5���) seeing. The slit included the position of the\nproposed optical afterglow (Fong et al. GCNC 17271) as well as the\nputative host galaxy also detected by Swift/UVOT (Cummings et al. GCNC\n17258). We detect a faint emission line consistent with [OII] at z =\n0.093, which we propose to be that of the potential host galaxy. If the\nassociation is confirmed, this would make of GRB 150101B the nearest\nshort-duration GRB found to date. Observations at all wavelengths are\nencouraged.",
  "circularId": 17278,
  "createdOn": 1420373227000,
  "email": "ajct@iaa.es",
  "subject": "GRB 150101B: potential host galaxy redshift by GTC",
  "submitter": "Alberto Castro-Tirado at Inst.de Astro. de Andalucia  <ajct@iaa.es>",
  "eventId": "GRB 150101B"
}