{
  "bibcode": "2008GCN..7529....1I",
  "body": "M. Im, I. Lee (Seoul National Univ), and Y. Urata (Saitama U/ASIAA)\non behalf of EAFON team.\n\n   We took a series of I-band and z-band images of GRB080325,\n  using the 1.0m telescope at Mt. Lemmon (Arizona, US)\n  operated by the Korea Astronomy Space Science Institute.\n   The z-band observation started at March 27, 08:46:06 UT\n  (2.19223 days after the burst) and the I-band observation\n  started at March 27, 10:41:05 UT (2.27208 days after the burst).\n\n   We do not find an optical counterpart at the location of\n  the NIR afterglow candidate reported by Tanaka et al. (GCN 7524),\n  in both I and z-band stacked images.\n   We set the limit of the GRB afterglow as I > 21.2 mag (3-sigma),\n  calibrated with a USNO-B star at (18:31:36.3, 36:31:51.0).\n\n   The afterglow candidate reported by Updike et al. (GCN 7515)\n  is detected at both I- and z-bands, with the I-band magnitude\n  of I=19.0 +- 0.1 mag, calibrated with the same star as above.\n   However, we note that this object is also visible in the DSS\n  image (POSS-II), and therefore it is unlikely to be a GRB afterglow.\n\n   We thank the LOAO operator, I. Baek for her assistance for this\n  observation.",
  "circularId": 7529,
  "createdOn": 1206718038000,
  "email": "mim@astro.snu.ac.kr",
  "subject": "GRB080325 - I and z-band Imaging",
  "submitter": "Myungshin Im at Seoul Nat U  <mim@astro.snu.ac.kr>",
  "eventId": "GRB 080325"
}