{
  "bibcode": "2011GCN.11931....1S",
  "body": "R. L. C. Starling (U Leicester), A. P. Beardmore (U Leicester),\nV. D'Elia (ASDC), P. A. Evans (U Leicester), J. M. Gelbord (PSU),\nB. Gendre (ASDC), C. Guidorzi (U Ferrara),\nS. T. Holland (CRESST/USRA/GSFC), A. Melandri (INAF-OAB),\nK. L. Page (U Leicester), A. Rowlinson (U Leicester),\nM. Stamatikos (OSU/NASA/GSFC), G. Stratta (ASDC) and\nG. Tagliaferri (INAF-OAB) report on behalf of the Swift Team:\n\nAt 07:42:14 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 110414A (trigger=451343).  Swift slewed immediately to the burst. \nThe BAT on-board calculated location is \nRA, Dec 97.876, +24.361 which is \n   RA(J2000) = 06h 31m 30s\n   Dec(J2000) = +24d 21' 39\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve showed multiple-peaked structure\nwith a duration of about 50 sec.  The peak count rate\nwas ~400 counts/sec (15-350 keV), at ~0 sec after the trigger. \n\nThe XRT began observing the field at 07:44:36.8 UT, 142.3 seconds after\nthe BAT trigger. Using promptly downlinked data we find a bright,\nuncatalogued X-ray source with an enhanced position: RA, Dec 97.8726,\n24.3624 which is equivalent to:\n   RA(J2000)  = 06h 31m 29.42s\n   Dec(J2000) = +24d 21' 44.7\"\nwith an uncertainty of 2.3 arcseconds (radius, 90% containment). This\nlocation is 12 arcseconds from the BAT onboard position, within the BAT\nerror circle. This position may be improved as more data are received;\nthe latest position is available at http://www.swift.ac.uk/sper. \n\nA power-law fit to a spectrum formed from promptly downlinked event\ndata gives a column density consistent with the Galactic value of 3.05\nx 10^21 cm^-2 (Kalberla et al. 2005). \n\nThe initial flux in the 2.5 s image was 4.11e-09 erg cm^-2 s^-1 (0.2-10\nkeV). \n\nUVOT took a finding chart exposure of nominal 250 seconds with the U filter\nstarting 308 seconds after the BAT trigger. No credible afterglow candidate has\nbeen found in the initial data products. Data from the 2.7'x2.7' sub-image are\nnot available at this time. The 8'x8' region for the list of sources generated\non-board covers 100% of the XRT error circle. The list of sources is typically\ncomplete to about 18.0 mag. No correction has been made for the expected\nextinction corresponding to E(B-V) of 0.33. \n\nBurst Advocate for this burst is R. L. C. Starling (rlcs1 AT star.le.ac.uk). \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.)",
  "circularId": 11931,
  "createdOn": 1302768018000,
  "email": "rlcs1@star.le.ac.uk",
  "subject": "GRB 110414A: Swift detection of a burst",
  "submitter": "Rhaana Starling at U of Leicester  <rlcs1@star.le.ac.uk>",
  "eventId": "GRB 110414A"
}