[vsnet-grb-info 24443] LIGO/Virgo S191222n: Upper limits from IceCube neutrino searches

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  26542
SUBJECT: LIGO/Virgo S191222n: Upper limits from IceCube neutrino searches
DATE:    19/12/22 04:09:01 GMT
FROM:    Alex Pizzuto at ICECUBE/U of Wisconsin  <pizzuto at wisc.edu>

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

Searches [1,2] for track-like muon neutrino events detected by IceCube
consistent with the sky localization of gravitational-wave candidate S191222n
 in a time range of 1000 seconds [3] centered on the alert event time
(2019-12-22 03:27:17.119 UTC to 2019-12-22 03:43:57.119 UTC) have been performed.

During this time period IceCube was collecting good quality data.
No significant track-like events are found in spatial coincidence of
S191222n calculated from the map circulated in the 1-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 S191222n ranges from 0.029 to 1.028 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 roc at icecube.wisc.edu<mailto:roc at icecube.wisc.edu>


[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)