{
  "bibcode": "2017GCN.21311....1C",
  "body": "A. Cucchiara (U. of the Virgin Islands) reports on\nbehalf of a larger collaboration:\n\n\"On July 10.17UT we imaged the field of GRB 170710A\n(Evans et al. GCN 21308, 21309, Osborne et al. GCN 21310)\nwith the Gemini-South Telescope equipped with the GMOS camera.\nWe obtained 4x900s spectra covering the 5660-10300 Angstrom\nwavelength range.\nIn our single 180 seconds acquisition image in i' band centered\non the Swift-XRT position we identified an uncatalogued\npoint-like sources at the edge of the refined position:\n\nRA= +15:27:16.87\nDec= -38:29:06.0\n\nUsing nearby USNO-B1 stars for calibration, we measure a\nmagnitude of i' = 21.13 +/- 0.05.\nAt this point it is not possible to assess the variability\nof this possible counterpart.\n\nPreliminary analysis of the spectra reveals a faint trace\nclearly visible down to the blue end of the spectrum.\nNo clear absorption or emission features are evident,\nbut more detailed analysis of the data is in progress.\n\nWe thank the Gemini staff for the prompt response, in particular\nVeronica Firpo.\"",
  "circularId": 21311,
  "createdOn": 1499684680000,
  "email": "antonino.cucchiara@uvi.edu",
  "subject": "GRB 170710A: Gemini-S candidate counterpart",
  "submitter": "Antonino Cucchiara at UVI  <antonino.cucchiara@uvi.edu>",
  "eventId": "GRB 170710A"
}