{
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov>",
  "circularId": 3442,
  "subject": "XRF050509C: Chandra Afterglow Detection",
  "body": "Derek B. Fox (Caltech) reports on behalf of a larger collaboration:\n\n\"We have observed the afterglow (Gorosabel et al, GCN 3425) of XRF\n050509C (Prigozhin et al., GCN 3402) with the Chandra X-ray\nObservatory and ACIS-S detector, in a single 20-ks pointing beginning\nat 09:54 UT on May 19, and detect the X-ray afterglow at a count rate\nof 0.7(2) counts per ksec.  This count rate corresponds to a 0.5-10\nkeV flux of 9E-15 erg cm-2 s-1, assuming a spectrum with power-law\nphoton index alpha=1.5 and Galactic N_H=5.5E+20 cm-2.  We note that\nthis flux is consistent with the upper limit from Swift XRT at a\nsimilar epoch (Campana et al., GCN 3441).\"",
  "email": "derekfox@astro.caltech.edu",
  "createdOn": 1116612544000,
  "eventId": "XRF 050509C",
  "editedOn": 1777053077614,
  "bibcode": "2005GCN..3442....1F",
  "submitter": "Derek Fox at CIT  <derekfox@astro.caltech.edu>",
  "version": 2
}