{
  "bibcode": "2020GCN.27166....1B",
  "body": "M. Blazek, D. A. Kann (both HETH/IAA-CSIC), A. de Ugarte Postigo \n(HETH/IAA-CSIC, DARK/NBI), C. C. Thoene, J. F. Agui Fernandez (both \nHETH/IAA-CSIC), N. Maicas, and J. L. Lamadrid (both CEFCA) report:\n\nWe observed the position of the Fermi GBM/LAT GRB 200219C (Fermi GBM \nteam, GCN #27145, Hamburg et al., GCN #27155, Dirirsa et al., GCN \n#27151) with the Javalambre Observatory OAJ 80cm telescope in g'r'i'z', \nobtaining 3 x 300 s exposures in g'r' each, and 5 x 180 s exposures in \ni'z' each. Observations started on 2020-02-21, 03:17:55 UT. No \nobservations were obtained the night before as the LAT position came \nonly after twilight had started.\n\nIn the stacked r' image (midtime 1.14375 days after the GRB), we clearly \ndetect a source within the enhanced XRT error circle (Burrows et al., \nGCN #27157) for which we measure r'(AB) = 22.11 �� 0.13 mag against \nPanSTARRS field stars.\n\nWe note this implies a decay compared with the afterglow discovery by \nReva et al. (GCN #27162) who find R ~ 21.72 �� 0.15 mag (AB) about six \nhours earlier. It is still brighter than the PanSTARRS host galaxy \nmagnitude given by Xu et al. (GCN #27161) at r' = 22.70 �� 0.15 mag.\n\nThe relatively bright host galaxy may be indicative of a low-redshift \nevent. As the source is improving in visibility and will be observable \nfor several months to come, a search for associated supernova emission \nmay be worthwhile. Spectroscopy is encouraged.",
  "circularId": 27166,
  "createdOn": 1582315397000,
  "email": "kann@iaa.es",
  "subject": "GRB 200219C: OAJ afterglow confirmation",
  "submitter": "Alexander Kann at IAA-CSIC  <kann@iaa.es>",
  "eventId": "GRB 200219C"
}