{
  "bibcode": "2014GCN.15890....1V",
  "body": "A.Volnova (IKI), A. Pozanenko (IKI), I. Korobtsev (ISTP), E. Klunko \n(ISTP),  M. Eselevich (ISTP), report on behalf of larger GRB follow-up \ncollaboration:\n\nWe observed the field of possible XRT afterglow candidate (Mangano et \nal., GCN 15875) of the GRB 140219A (Hurley et al., GCN 15864, Zhang GCN \n15866, Guiriec et al.,GCN 15867, Golenetskii et al. GCN 15870, Serino et \nal. GCN 15882) with AZT-33IK telescope of Mondy observatory on Feb. 22 \n(UT) 14:45-15:45 (Pozanenko et al., GCN 15876) and Feb. 27 (UT) \n15:18-16:18. We obtained several images with exposure of 60 seconds in \nR-filter during each observational set. In the stacked images within XRT \nerror circle (Mangano et al., GCN 15875) we clearly detect two objects \nwhich are present in SDSS plates and SDSS DR9. One of them is a galaxy \n(refereed below as G5), SDSS J102406.58+062945.8, and other one is a \nstar (X5), SDSS J102406.41+062937.6, both objects mentioned earlier \n(Pozanenko et al.,  GCN 15876, Singer et al.,  GCN 15878).\nNo new objects were detected.\n\nThe photometry of the two sources is following:\n\ndate         UT start t-T0      Exp.    Filter  G5     X5\n                      (mid, days) (s)\n2014-02-22  14:45:44  2.81197    51*60  R 20.77+/-0.12 19.74+/-0.05\n2014-02-27  15:18:29  7.81388    60*60  R 20.51+/-0.09 19.59+/-0.06\n\nThe photometry is based on reference stars SDSS-DR9, (R mag,\ntransformation by Lupton 2005):\n\nN  SDSS_id                R(Lupton)   err\n1  J102410.32+062923.9    17.391       0.017\n2  J102410.04+062943.6    18.163       0.023\n3  J102404.63+062938.7    18.962       0.025\n\nThe known star X5 is ~0.5m brighter than assumed R mag from SDSS DR9, \ni.e. R = 20.24 +/- 0.06, in accordance with Singer et al. (GCN 15878).\nWe also may suspect, that known galaxy G5 might be brighter in our \nsecond epoch (Feb. 27) than on first epoch (Feb. 22). We encourage \nfurther observation of the galaxy G5 to confirm re-brightening, and if \nso the galaxy might be a host of GRB 140219A.\n\nAlso we report a redshift of G5 galaxy z= 0.12 +/- 0.12 obtained \nphotometrically using SDSS DR9 catalog.",
  "circularId": 15890,
  "createdOn": 1393599456000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 140219A: Mondy optical observations of XRT source #5",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 140219A"
}