TITLE: GCN CIRCULAR NUMBER: 24618 SUBJECT: LIGO/Virgo S190521g: IceCube Neutrino Search DATE: 19/05/21 03:23:13 GMT FROM: Raamis Hussain at IceCube The IceCube Collaboration (http://icecube.wisc.edu/) reports: IceCube has performed a search for track-like muon neutrino events consistent with the sky localization of S190521g-1-Preliminary in a time range of 1000 seconds centered on the alert event time (2019-05-21 02:54:09.447 UTC to 2019-05-21 03:10:49.447 UTC) during which IceCube was collecting good quality data. No track-like events are found in spatial coincidence with the 90% spatial containment of S190521g-1-Preliminary calculated from the map circulated in the preliminary notice. IceCube's sensitivity to point sources within the location spanned by the 90% spatial containment of S190521g-1-Preliminary ranges from 0.039 to 0.966 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@icecube.wisc.edu