{
  "editedBy": "Vidushi Sharma at NASA GSFC/UMBC <vidushi.sharma@nasa.gov> on behalf of Daniele B. Malesani at IMAPP / Radboud University <d.malesani@astro.ru.nl>",
  "editedOn": 1742069652860,
  "bibcode": "2025GCN.39727....1M",
  "subject": "GRB 250314A: NOT near-infrared candidate counterpart ",
  "eventId": "GRB 250314A",
  "format": "text/plain",
  "createdOn": 1742013021484,
  "body": "D. B. Malesani (DAWN/NBI), G. Corcoran (UCD), L. Izzo (INAF/OAC and DARK/NBI), B. Schneider (LAM), J. T. Palmerio (CEA/Irfu), A. Henderson de la Fuente (NOT) report on behalf of a larger collaboration:\n\nWe observed the field of the SVOM GRB 250314A (Wang et al., GCN 39719) using the Nordic Optical Telescope equipped with the NOTCam near-infrared camera. Observations were carried out in the J band, for a total exposure time of 18 min on source, at a mean epoch of March 15.0523 UT (12.3 hr after the trigger).\n\nA faint object is apparent at coordinates (J2000):\n\nRA = 13:25:12.16\nDec = -05:16:55.1\n\nCalibrating against nearby 2MASS stars, we measure J = 20.85 +- 0.15 (Vega).\n\nNothing is visible at this location in the Legacy Survey nor in the Vista Hemisphere Survey (VHS), down to limits r > 24.2 (AB) and J > 20 (Vega).\n\nThe position of this object is consistent with a bright X-ray source visible in public observations carried out by the Neil Gehrels Swift Observatory X-ray telescope (XRT; target ID 19616, PI Kennea). We thus consider this source as a plausible NIR counterpart candidate of GRB 250314A, though detection of fading will be necessary to confirm this hypothesis.",
  "submittedHow": "web",
  "circularId": 39727,
  "version": 3,
  "submitter": "Daniele B. Malesani at IMAPP / Radboud University <d.malesani@astro.ru.nl>"
}