{
  "bibcode": "2007GCN..6972....1M",
  "body": "D. Malesani (DARK), S. Piranomonte (INAF/OARm), G. Tagliaferri, G. \nChincarini, S. Covino (INAF/OABr), F. Fiore, L. Stella (INAF/OAR), \nreport on behalf of the MISTICI collaboration:\n\nWe observed the field of GRB 071021 (Sakamoto et al., GCN 6958) with the \n8.2m VLT+FORS2 equipped with the z_Gunn filter (effective wavelength: \n9100 A; FWHM: 1300 A).\n\nIn a coadded image totalling 15 min exposure, we see a weak source at \nthe coordinates provided by Castro-Tirado et al. (GCNs 6968, 6971).\n\nOur detection would suggest a redshift less than roughly 6.5.\n\nA finding chart is poste at:\n\nhttp://www.astro.ku.dk/~malesani/GRB/071021/071021_finder.jpg\n\nWe acknowledge excellent support from the ESO staff, particularly Hugues \nSana.",
  "circularId": 6972,
  "createdOn": 1193019531000,
  "email": "malesani@astro.ku.dk",
  "subject": "GRB 071021: Z-band detection",
  "submitter": "Daniele Malesani at Niels Bohr Inst,Dark Cosmology Center  <malesani@astro.ku.dk>",
  "eventId": "GRB 071021"
}