{
  "bibcode": "2014GCN.16158....1D",
  "body": "V. D'Elia (ASDC), N. Gehrels (NASA/GSFC), S. T. Holland (STScI),\nH. A. Krimm (CRESST/GSFC/USRA), C. B. Markwardt (NASA/GSFC),\nF. E. Marshall (NASA/GSFC), K. L. Page (U Leicester),\nT. Sakamoto (AGU), B. Sbarufatti (INAF-OAB/PSU) and\nT. N. Ukwatta (MSU) report on behalf of the Swift Team:\n\nAt 21:07:08 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated an X-ray source (trigger=596958).  Swift slewed immediately to the location. \nThe BAT on-board calculated location is \nRA, Dec 202.928, +29.258 which is \n   RA(J2000) = 13h 31m 43s\n   Dec(J2000) = +29d 15' 30\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  As is usual with an image trigger, \nthe BAT light curve shows no significant structure.  This is a \n15-50 keV trigger with a duration of 64 seconds. \n\nThe XRT began observing the field at 21:09:05.1 UT, 117.0 seconds after\nthe BAT trigger. XRT found a bright X-ray source located at RA, Dec\n202.9436, 29.2763 which is equivalent to:\n   RA(J2000)  = +13h 31m 46.46s\n   Dec(J2000) = +29d 16' 34.7\"\nwith an uncertainty of 4.9 arcseconds (radius, 90% containment). This\nlocation is 82 arcseconds from the BAT onboard position, within the BAT\nerror circle. This position is 2.9 arcsec from that of the known flare \nstar DG CVn, and 1.1 arcseconds from that of a known X-ray source, \n3XMM J133146.5+291635 in the XMM-NEWTON XMMSSC catalogue. \nNo event data are yet available to determine the column density using\nX-ray spectroscopy. \n\nThe initial flux in the 2.5 s image was 4.10e-09 erg cm^-2 s^-1 (0.2-10\nkeV). \n\nUVOT took a finding chart exposure of 150 seconds with the White filter\nstarting 125 seconds after the BAT trigger. UVOT sees a very bright saturated\nsource near the XRT position. Because of coincidence loss, it is difficult to\naccurately determine the position or count rate.",
  "circularId": 16158,
  "createdOn": 1398289264000,
  "email": "kpa@star.le.ac.uk",
  "subject": "Swift Trigger 596958 is probably the flare star: DG CVn",
  "submitter": "Kim Page at U.of Leicester  <kpa@star.le.ac.uk>"
}