{
  "bibcode": "2006GCN..5640....1G",
  "body": "G. Greco, C. Bartolini, A. Guarnieri, A. Piccioni (Bologna\n      University),  F. Terra, Second University of Roma \"Tor Vergata\",\n      D. Nanni (INAF/OAR and Second University of Roma \"Tor Vergata\"),\n  S. Galleti, R. Gualandi (INAF Bologna) and G. Pizzichini (INAF/IASF\n  Bologna) report:\n\n  Using the 152 cm Loiano telescope equipped with the BFOSC camera\n  system, we  obtained three 20 min. Rc-band images of the field of\n  GRB060927 (Barbier et al., GCN 5627), starting at Sept. 27.763 ,\n  27.779 and 27.795 respectively, seeing 2.2 arcsec.\n  In our co-added images we do not detect the OT reported by Schaefer,\n  Yost and Yuan  (GCN 5629). Our 3 sigma upper limit is Rc  = 21.7    .",
  "circularId": 5640,
  "createdOn": 1159398183000,
  "email": "pizzichini@iasfbo.inaf.it",
  "subject": "GRB 060927 optical limit",
  "submitter": "Graziella Pizzichini at IASF/CNR,Bologna  <pizzichini@iasfbo.inaf.it>",
  "eventId": "GRB 060927"
}