TITLE:   GCN CIRCULAR
NUMBER:  24573
SUBJECT: LIGO/Virgo S190517h: IceCube Neutrino Search
DATE:    19/05/17 08:44:30 GMT
FROM:    Alex Pizzuto at ICECUBE/U of Wisconsin  <pizzuto@wisc.edu>

The IceCube Collaboration (http://icecube.wisc.edu/) reports:

IceCube has performed a search for track-like muon neutrino events
consistent with the sky localization of S190517h in a time range of 1000
seconds centered on the alert event time (2019-05-17 05:42:41.831 UTC to 2019-05-17 05:59:21.831 UTC)
during which IceCube was collecting good quality data. One track-like event
is found in spatial coincidence with the 90% spatial containment region of
S190517h calculated from the map circulated in the preliminary notice. This
represents an overall p-value of 0.094 (1.32sigma) with respect
to the background only hypothesis. Properties of the coincident event are shown below.

 dt           ra           dec         Angular Uncertainty(deg)         pvalue
----------------------------------------------------------------------------------
336.32         290.80         -69.39                 3.65                0.096


dt = Time offset (sec) of track event with respect to GW trigger.
Angular uncertainty = Angular uncertainty of track event: the radius of a circle representing 90% CL containment by area.
Pvalue = the pvalue for this specific track event with respect to a background only hypothesis

The IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the geographic South Pole, Antarctica.
The IceCube realtime alert point of contact can be reached at roc@icecube.wisc.edu