{
  "bibcode": "2017GCN.20549....1C",
  "body": "���Z. Cano (IAA-CSIC), K. E. Heintz (Univ. Iceland & DARK/NBI), D. Malesani\n(���DARK/NBI and DTU Space���)��� & R. Tronsgaard (NOT) report on behalf of a\nlarger collaboration:\n\nWe observed the field of short-duration GRB 170127B (Cannizzo et al.; GCN\nCirc. 20540) with the 2.5-m Nordic Optical Telescope equipped with ALFOSC,\nstarting at 19:48:56 UT on 27 January 2017 (4.59 hrs from detection).  We\nobtained 3x300 s in the r-band.  In our co-added image no new object is\ndetected in the XRT error circle to the following limit:\n\nFilter    t-t0 (hr)     magnitude (AB)\n-------------------------------------------\n  r        4.73           >23.4\n\nThe r-band upper limit is for an isolated point source in the GRB field,\nwhich is calibrated to local Pan-STARRS standards in the field.  This upper\nlimit is not corrected for foreground extinction (E(B-V) = 0.02 mag,\nSchlegel et al. 1998).",
  "circularId": 20549,
  "createdOn": 1485551310000,
  "email": "zewcano@gmail.com",
  "subject": "GRB 170127B: NOT r-band upper limits",
  "submitter": "Zach Cano at U of Iceland  <zewcano@gmail.com>",
  "eventId": "GRB 170127B"
}