{
  "subject": "GRB 180613A: Possible host galaxy at XRT position, or star",
  "eventId": "GRB 180613A",
  "bibcode": "2018GCN.22772....1K",
  "createdOn": 1528906833000,
  "circularId": 22772,
  "submitter": "Alexander Kann at IAA-CSIC  <kann@iaa.es>",
  "email": "kann@iaa.es",
  "body": "D. A. Kann and L. Izzo (HETH/IAA-CSIC) report:\n\nInspection of archival DSS images of the enhanced XRT position (error \nradius 2.0\", Evans, GCN #22771) of GRB 180613A (Tohuvavohu et al., GCN \n#22769) reveals a known source within the XRT error circle. This source \nis known in the USNO B1.0 catalog, and is also part of Gaia DR1/2 \n(source ID 6109389046377848320, with possible parallax of 0.98 +/- 0.62 \nmas, Gmag = 19.748). PS1 and SDSS do not cover this location.\n\nIt is not possible to determine from the DSS2 image if this source is \nstellar or slightly extended. We suggest this source may be the host \ngalaxy of this GRB, but it could also be a foreground star, as the \nstellar density of this field is quite high.\n\n[GCN OPS NOTE(13jun18): Per author's request, \"Ecans\" was changed to \"Evans\"\nin the second line.]"
}