{
  "bibcode": "2020GCN.28171....1L",
  "body": "T. Laskar (U. of Bath), E. Berger (Harvard), C. Kilpatrick (UCSC), W. Fong,\nR. Margutti, R. Chornock, A. Hajela, K. Alexander, D. Coppejans\n(Northwestern) report:\n\n\"In an archival observation of NGC4242 by the Spitzer Space Telescope on\n2012-08-06 (PI: van Zee), we find a point-like source coincident with the\nenhanced X-ray position of GRB 200729A (Osborne et al, GCN 28168).\nPhotometry is complicated by the variable background; preliminary analysis\nsuggests the object has a flux density of ~ 11 uJy (21.3 AB mag), about 1\nmag brighter than the NOT r/z limits (Malesani et al., GCN 28169).\n\nFurther analysis is in progress.\"",
  "circularId": 28171,
  "createdOn": 1596070211000,
  "email": "tanmoylaskar@gmail.com",
  "subject": "GRB 200729A: Spitzer archival source detection",
  "submitter": "Tanmoy Laskar at U of Bath  <tanmoylaskar@gmail.com>",
  "eventId": "GRB 200729A"
}