{
  "bibcode": "2013GCN.15337....1S",
  "body": "S. Schulze (PUC, MCSS), D. Xu , D. Malesani, J. P. U. Fynbo (DARK/NBI), T. Kangas (NOT), H. Ghasemi, A. Takalo, C. Xavier, Y. Litus, J. Saario, T. Tuominen, J. Harmanen, and M. Khansari (Tuorla Observatory) report on behalf of a large collaboration:\n\nWe observed the field of GRB 131014A (Fitzpatrick & Xiong, GCN15332; Desiante et al., GCN 15333) with the 2.5-m Nordic Optical Telescope (NOT) equipped with ALFOSC. We obtained 6 x 300 s R-band images. The mean time of the NOT observation is October 15.221 UT, 1.01 days after the Fermi trigger.\n\nWe detect an uncatalogued source within the error circle of the possible X-ray afterglow (Kennea et al., GCN 15335) at:\n\nR.A.(J2000)\t= 06:41:12.240\nDec. (J2000) = -19:05:51.49\n\nwith an uncertainty of 0.4''.\n\nThis source may be the optical afterglow of GRB 131014A, but we cannot presently assess its variability and thus confirm its nature. We measure a R1 magnitude of 23.11 +/- 0.12 mag calibrated against four USNO B1 stars (0709-0091487, 0708-0089714, 0709-0091459, 0709-0091432).\n\nWe also note the presence of a brighter source (R.A. = 06:41:12.1, Dec. = -19:05:47.6) just to the North of the XRT error circle, which is however detected in the SDSS r-band frames.",
  "circularId": 15337,
  "createdOn": 1381821689000,
  "email": "sts30@hi.is",
  "subject": "GRB 131014A: NOT afterglow candidate",
  "submitter": "Steve Schulze at U of Iceland  <sts30@hi.is>",
  "eventId": "GRB 131014A"
}