[vsnet-grb-info 22912] LIGO/Virgo S190707q: Upper limits from IceCube neutrino searches

GCN Circulars gcncirc at capella2.gsfc.nasa.gov
Sun Jul 7 19:28:15 JST 2019


TITLE:   GCN CIRCULAR
NUMBER:  25011
SUBJECT: LIGO/Virgo S190707q: Upper limits from IceCube neutrino searches
DATE:    19/07/07 10:27:01 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 S190707q
 in a time range of 1000 seconds [3] centered on the alert event time
(2019-07-07 09:25:06.181 UTC to 2019-07-07 09:41:46.181 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 S190707q 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 S190707q ranges from  0.029 to 0.763 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


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



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