{
  "bibcode": "2008GCN..7224....1T",
  "body": "E. Troja (INAF/IASFPA), and D. N. Burrows (PSU) report\non behalf of the Swift XRT team:\n\nWe have analysed 21 ks of XRT/PC data for the short GRB 080121 (trigger\n301491; Cummings & Palmer, GCN 7209), starting 2.3 d after the burst.\nNo X-ray afterglow candidate is found within the BAT error circle\n(GCN 7209). A faint source is detected within the BAT error circle at\n\nRA(2000) = 09h 08m 46.36s,\nDec(J2000) = +41d 51' 21.1''\n\nwith an error radius 5 arcsec (90% containment). This source has a count\nrate of ~2E-03 cts/s, and displays no fading behaviour.\n\nWe place a 3 sigma upper limit of 1E-03 cts/s on the X-ray afterglow count\nrate, which corresponds to an unabsorbed flux of 3.7E-14 erg/cm^2/s (over\n0.3-10 keV), assuming a Crab-like spectrum and a Galactic absorption of\n1.23E+20 cm^-2 (Kalberla et al. 2005).\n\nThis circular is an official product of the Swift XRT Team.",
  "circularId": 7224,
  "createdOn": 1201534983000,
  "email": "nora@ifc.inaf.it",
  "subject": "GRB 080121: Upper limit on X-ray afterglow",
  "submitter": "Eleonora Troja at INAF-IASFPA  <nora@ifc.inaf.it>",
  "eventId": "GRB 080121"
}