{
  "bibcode": "2015GCN.17588....1X",
  "body": "D. Xu (DARK/NBI), A. de Ugarte Postigo (IAA-CSIC, DARK/NBI), D.\nMalesani (DARK/NBI), D. Slumstrup (NOT),  P. Jakobsson (U. Iceland)\nreport on behalf of a larger collaboration:\n\nWe continued to observe the field of GRB 150314A (Hagen et al., GCN\n17573) using the 2.56m Nordic Optical Telescope (NOT) equipped with\nthe ALFOSC camera. We obtained 4x600 s R-band images with a median\ntime of 02:16:32 UT on 2015-03-16, i.e., 45.35 hr after the burst, and\nin the seeing of 1.0\"-1.5\".\n\nThe optical afterglow (Zheng & Filippenko, GCN 17574; Trotter et al.,\nGCN 17577) is still detected in our stacked image, with m(R) = 23.9\n+/- 0.3 mag, calibrated with the same USNO B1 stars that were used in\nour previous report (Xu et al., GCN 17582). Together with previous\nobservations (e.g., Perley & Cenko, GCN 17584; Zheng & Filippenko, GCN\n17585), so far the object still nicely fits the decaying law of F(t) ~\nt^-0.9.",
  "circularId": 17588,
  "createdOn": 1426479319000,
  "email": "dong.dark@gmail.com",
  "subject": "GRB 150314A: NOT further optical observations",
  "submitter": "Dong Xu at DARK/NBI  <dong.dark@gmail.com>",
  "eventId": "GRB 150314A"
}