{
  "bibcode": "2016GCN.20342....1D",
  "body": "A. de Ugarte Postigo (IAA-CSIC, DARK/NBI), Z. Cano, L. Izzo, \nC. Thoene, R. Sanchez-Ramirez, K. Bensch (IAA-CSIC), D. A. Kann \n(IAA-CSIC, TLS), N. Tanvir (U. Leicester), S. Schulze, G. Leloudas \n(Weizmann Institute), S. Geier (IAC, GRANTECAN), A. Tejero \n(GRANTECAN) report on behalf of a larger collaboration:\n\nWe observed the optical counterpart of GRB 161219B (D���Ai et al. GCN \n20296) with OSIRIS at the 10.4m GTC telescope on La Palma (Spain). \nThe observations consisted of 3 x 900 s spectra using grism R1000B, \nwhich covers the spectral region between 3700 and 7800 AA, plus g, r, i \nand z-band imaging. The point-like GRB counterpart is prominent on top \nof the elongated host galaxy.\n\nThe combined spectrum has mean UT epoch on 27.02 December (7.24 \ndays after the burst) and shows a strong continuum with clear broad \nfeatures typical of a type Ic-BL supernova, implying that the supernova \ncontribution is already significant. We also detect several emission \nfeatures of the host galaxy (due to [OIII], [OII], [NII] and H) as well as CaII \nin absorption at the redshift of z = 0.1475 proposed for the GRB (Tanvir \net al. GCN 20321).",
  "circularId": 20342,
  "createdOn": 1482837184000,
  "email": "deugarte@iaa.es",
  "subject": "GRB 161219B: Spectroscopic detection of the associated SN with OSIRIS/GTC",
  "submitter": "Antonio de Ugarte Postigo at IAA-CSIC  <deugarte@iaa.es>",
  "eventId": "GRB 161219B"
}