{
  "eventId": "GRB 231117A",
  "bibcode": "2023GCN.35114....1S",
  "submittedHow": "email-legacy",
  "body": "G. Schroeder (Northwestern), W. Fong, T. Laskar (Utah) report:\n\n\"We observed the position of the short GRB 231117A (Laha et al., GCN 35071,\nNavaneeth et al., GCN 35072, Cattaneo et al., GCN 35075, Svinkin et al.,\nGCN 35079, Cheung et al., GCN 35081) with the Karl G. Jansky Very Large\nArray (VLA) under program 23A-296 (PI: Schroeder) beginning on 2023 Nov.\n17.98 UT (0.85 days post-burst) for 0.75 hours at a mean frequency of 10\nGHz.\n\nWe confirm the presence of a radio source consistent with the location of\nthe putative optical afterglow and host galaxy (Yang et al. GCN 35083,\nRastinejad et al., GCN 35087, Gompertz & Ackley, GCN 35088, Kumar et al.,\nGCN 35089, Andreoni et al., GCN 35099, Kilpatrick et al., GCN 35102, Chen\net al. 35105). We measure a flux density of ~190 uJy, resulting in a radio\nluminosity of ~4e29 erg/s/Hz, consistent with typical radio luminosities of\nSGRB radio afterglows (Laskar et al. 2022).\n\nOur measured flux density is somewhat fainter than the 9 GHz flux with ATCA\nreported by Rhodes et al. (GCN 35097). While the ATCA observations occurred\nat a slightly earlier mid-time of 0.54 days than our VLA observations, we\ncannot make a strong statistically significant claim regarding fading\nbetween the two observations at this time.\n\nWe thank the VLA staff for quickly approving and executing these\nobservations. Further observations are planned to assess the nature of the\nradio source.\"\nReplyForward\n",
  "submitter": "Genevieve Schroeder at Northwestern University <genevieveschroeder2023@u.northwestern.edu>",
  "circularId": 35114,
  "subject": "GRB 231117A: 10 GHz VLA detection",
  "createdOn": 1700365753905
}