{
  "subject": "GRB 140619A: Swift detection of a burst with a possible optical counterpart",
  "eventId": "GRB 140619A",
  "bibcode": "2014GCN.16415....1D",
  "createdOn": 1403178995000,
  "circularId": 16415,
  "submitter": "David Burrows at PSU/Swift  <burrows@astro.psu.edu>",
  "email": "burrows@astro.psu.edu",
  "body": "M. De Pasquale (INAF-IASFPA), D. N. Burrows (PSU), S. B. Cenko (GSFC),\nJ. A. Kennea (PSU), H. A. Krimm (CRESST/GSFC/USRA),\nN. P. M. Kuin (UCL-MSSL), A. Y. Lien (NASA/GSFC/ORAU),\nF. E. Marshall (NASA/GSFC), A. Maselli (INAF-IASFPA),\nK. L. Page (U Leicester), B. Sbarufatti (INAF-OAB/PSU) and\nT. N. Ukwatta (MSU) report on behalf of the Swift Team:\n\nAt 11:38:35 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 140619A (trigger=602080).  Swift slewed immediately to the burst. \nThe BAT on-board calculated location is \nRA, Dec 27.092, -39.261 which is \n   RA(J2000) = 01h 48m 22s\n   Dec(J2000) = -39d 15' 40\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  As is usual with an image trigger, the available\nBAT light curve shows no significant structure. \n\nThe XRT began observing the field at 11:40:54.9 UT, 139.1 seconds after\nthe BAT trigger. XRT found a bright, uncatalogued X-ray source located\nat RA, Dec 27.1084, -39.2586 which is equivalent to:\n   RA(J2000)  = +01h 48m 26.02s\n   Dec(J2000) = -39d 15' 31.0\"\nwith an uncertainty of 4.8 arcseconds (radius, 90% containment). This\nlocation is 46 arcseconds from the BAT onboard position, within the BAT\nerror circle. No event data are yet available to determine the column\ndensity using X-ray spectroscopy. \n\nThe initial flux in the 2.5 s image was 5.85e-09 erg cm^-2 s^-1 (0.2-10\nkeV). \n\nUVOT took a finding chart exposure of  98 seconds with the White filter\nstarting 147 seconds after the BAT trigger. There is a weak 20.5 mag source\nnear the XRT position. No aspect UVOT aspect solution is available\nbecause of the paucity of stars. Confirmation of the afterglow\nwill require the full data set. No correction has been made\nfor the expected extinction corresponding to E(B-V) of 0.01. \n\nBurst Advocate for this burst is M. De Pasquale (mdp AT ifc.inaf.it). \nPlease contact the BA by email if you require additional information\nregarding Swift followup of this burst. In extremely urgent cases, after\ntrying the Burst Advocate, you can contact the Swift PI by phone (see\nSwift TOO web site for information: http://www.swift.psu.edu/too.html.)"
}