{
  "bibcode": "2013GCN.15329....1P",
  "body": "K.L. Page (U. Leicester) reports on behalf of the Swift-XRT team:\n\nWe have analysed 4.9 ks of XRT data for the candidate afterglow iPTF 13dsw\n(Kasliwal, Singer & Cenko, GCN Circ. 15324; Xu et al., GCN Circ. 15325;\nGCN Circ. 15326; Perley, Cenko & Kasliwal, GCN Circ. 15327; Sudilovsky,\nTanga, & Greiner, GCN Circ. 15328), obtained on October 12, between 17:06\nand 20:54 (starting approximately 24 hours after Fermi Trigger 403206457).\nA faint X-ray source consistent with the iPTF 13dsw position is detected:\nRA, Dec = 32.5255, -4.4117, which is equivalent to\n\nRA(J2000)  =  02h 10m 06.11s\nDec(J2000) = -04d 24' 42.1\"\n\nwith an uncertainty of 4.1 arcsec (radius, 90% confidence). Currently the\nsource has a 0.3-10 keV count rate in the Swift-XRT of (5.9 +0.9/-0.8)e-3\ncount s^-1. We cannot determine at the present time whether the source is\nfading.\n\nGiven the small number of detected X-ray photons, any spectral analysis is\nuncertain. However, the spectrum can be suitably approximated by a\npower-law with Gamma = 1.5 +0.6/-0.7, absorbed by the Galactic NH in this\ndirection of 1.85e20 cm^-2. The observed (unabsorbed) flux is 2.9e-13\n(3.0e-13) erg cm^-2 s^-1.\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 15329,
  "createdOn": 1381652759000,
  "email": "klp5@leicester.ac.uk",
  "subject": "Swift-XRT detection of iPTF 13dsw/Fermi403206457",
  "submitter": "Kim Page at U.of Leicester  <klp5@leicester.ac.uk>"
}