{
  "bibcode": "2015GCN.18709....1O",
  "body": "Nicola Omodei (Stanford), Julie McEnery (GSFC), and Giacomo Vianello \n(Stanford) report on behalf of the Fermi-LAT team:\n\nWe have searched Fermi-LAT data for possible high-energy gamma-ray \nemission in spatial/temporal coincidence with the LIGO/Virgo trigger \nG184098. We have mapped the LIGO/Virgo probability map into 8 different \nRegion Of Interests (ROIs), each with a radius if 10 degrees centered on \nthe following coordinates (J2000, degrees):\n\na) R.A., Dec. =  132.60,    5.60\nb) R.A., Dec. =  144.00,   -6.00\nc) R.A., Dec. =  146.00,  -60.00\nd) R.A., Dec. =  131.00,  -66.00\ne) R.A., Dec. =  115.00,  -68.00\nf) R.A., Dec. =   98.00,  -69.00\ng) R.A., Dec. =   78.00,  -67.00\nh) R.A., Dec. =   63.00,  -60.00\n\n\nNone of the ROIs enters the LAT Field Of View (FOV) prior to 4200 \nseconds after the trigger time (2015-09-14 09:50:45 UTC).\nFor every passage of each ROI inside the LAT FOV within -3/+1 day from \nthe trigger, we searched for point-like excess gamma-ray emission \nintegrated over the transit time (typically a few thousand seconds). A \ncomparison of the distributions of the maximum Test Statistic (TS) \nwithin the ROIs before and after the trigger shows no significant excess.\n\nThe Fermi-LAT point of contact for this candidate is Nicola Omodei \n(nicola.omodei@stanford.edu).\n\nThe Fermi-LAT is a pair conversion telescope designed to cover the \nenergy band from 20 MeV to greater than 300 GeV. It is the product of an \ninternational collaboration between NASA and DOE in the U.S. and many \nscientific institutions across France, Italy, Japan and Sweden.",
  "circularId": 18709,
  "createdOn": 1450392236000,
  "email": "nicola.omodei@stanford.edu",
  "eventId": "LIGO/Virgo G184098",
  "subject": "LIGO/Virgo G184098: Fermi-LAT search for high-energy gamma-ray counterpart",
  "submitter": "Nicola Omodei at Stanford U  <nicola.omodei@stanford.edu>"
}