TITLE:   GCN CIRCULAR
NUMBER:  36410
SUBJECT: LIGO/Virgo/KAGRA S240422ed: Upper limits from a two-week IceCube neutrino search
DATE:    24/05/07 17:51:11 GMT
FROM:    Jessie Thwaites at IceCube/U Wisc-Madison <thwaites@wisc.edu>

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

IceCube has performed an additional search [1] for track-like muon neutrino events consistent with the sky localization of gravitational-wave candidate S240422ed in a time range of -0.1 day, +14 days from the alert event time (2024-04-22 19:11:13.417 UTC to 2024-05-06 21:35:13.417 UTC). 

During this time period IceCube was collecting good quality data. In this case, we report a p-value of 0.41, consistent with no significant excess of track events. 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 the 4-Update map ranges from 0.136 to 0.568 GeV cm^-2 in this 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@icecube.wisc.edu.

[1] Abbasi et al. Astrophys.J. 944 (2023) 1, 80