[vsnet-grb-info 25103] LIGO/Virgo S200225q: Upper limits from IceCube neutrino searches
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Tue Feb 25 22:41:35 JST 2020
TITLE: GCN CIRCULAR
NUMBER: 27203
SUBJECT: LIGO/Virgo S200225q: Upper limits from IceCube neutrino searches
DATE: 20/02/25 13:39:45 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 S200225q
in a time range of 1000 seconds [3] centered on the alert event time
(2020-02-25 05:56:01.397 UTC to 2020-02-25 06:12:41.397 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
S200225q calculated from the map circulated in the 3-Initial 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 S200225q ranges from 0.029 to 0.358 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)
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