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GCN Circular 27359

LIGO/Virgo S200311bg: Upper limits from IceCube neutrino searches
2020-03-11T12:28:49Z (4 years ago)
Raamis Hussain at IceCube <>
IceCube Collaboration ( reports:

Searches [1,2] for track-like muon neutrino events detected by IceCube
consistent with the sky localization of gravitational-wave candidate
 in a time range of 1000 seconds [3] centered on the alert event time
(2020-03-11 11:50:33.398 UTC to 2020-03-11 12:07:13.398 UTC) have been

During this time period IceCube was collecting good quality data.
No significant track-like events are found in spatial coincidence of
S200311bg calculated from the map circulated in the 2-Preliminary notice.

IceCube's sensitivity assuming an E^-2 spectrum (E^2 dN/dE) to neutrino
point sources within the locations spanned by the 90% spatial containment
of S200311bg ranges from 0.029 to 0.194 GeV cm^-2 in a 1000 second
time window.

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

[1] Bartos et al. arXiv:1810.11467 (2018) and Countryman et
al.arXiv:1901.05486 (2019)
[2] PoS(ICRC2019)918 and Braun et al., Astroparticle Physics 29, 299 (2008)
[3] Baret et al., Astroparticle Physics 35, 1 (2011)
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