{
  "bibcode": "2018GCN.22847....1L",
  "body": "A. Y. Lien (GSFC/UMBC), D. M. Palmer (LANL), A. Tohuvavohu (PSU),\nS. D. Barthelmy (GSFC), S. B. Cenko (GSFC), J. R. Cummings (CPI),\nH. A. Krimm (NSF/USRA), R. Margutti (Northwestern University),\nC. B. Markwardt (GSFC), T. Sakamoto (AGU), M. Stamatikos (OSU),\nT. N. Ukwatta (LANL) (i.e. the Swift-BAT team):\n\nWe report the search results of AT2018cow in the Swift/BAT data.\nUsing the source location of (RA, Dec) = (244.00090, 22.26800) deg\nfrom Smartt et al. ATel #11727, the BAT mask-weighted light curve\nfrom the BAT survey data (14-195 keV) shows marginal detections\nof AT2018cow at ~ 3 sigma at ~T0, ~T0+1, and ~T0+6 days.\nT0 = 2018-06-16 at 10:35:02 UTC, which is the time of discovery\nreported in Smartt et al. ATel #11727.\n\nThe 3 sigma detections are roughly consistent with NuSTAR flux\nmeasurements (Margutti et al., ATel #11775). However, we note that\ndue to the low significance of these detections, we cannot rule out that\nthese are due to noise fluctuation.\n\nA search with the BAT onboard sub-threshold triggers found no events\nwith localizations that are consistent with AT2018cow.\n\nThe results of the BAT data analysis are at\nhttps://swift.gsfc.nasa.gov/results/BATbursts/AT2018cow/top.html\n\nThe light curves and data will continue to be updated on a daily\nbasis in the near future.",
  "circularId": 22847,
  "createdOn": 1529979192000,
  "email": "amy.y.lien@nasa.gov",
  "subject": "AT2018cow: Swift/BAT data search",
  "submitter": "Amy Lien at GSFC  <amy.y.lien@nasa.gov>"
}