Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 25291

HAWC Burst Alert 1008846_957: IceCube Neutrino Search
2019-08-08T15:52:37Z (5 years ago)
Alex Pizzuto at ICECUBE/U of Wisconsin <>
The IceCube Collaboration ( reports:

IceCube has performed a search for track-like muon neutrino events arriving 
from the direction of HAWC Burst Alert 1008846_957 (GCN 25284) in a time 
window 12 hours in duration centered on the burst time (2019-08-06 07:20:48.0 UTC 
to 2019-08-06 19:20:48.0 UTC), during which IceCube was collecting good quality data. 
Zero track-like events are found in spatial coincidence with the location of the HAWC 
alert during this time period. Accordingly, the time-integrated muon-neutrino flux, 
multiplied by E^2, upper limit at the alert position assuming an E^-2 spectrum (E^2 dN/dE) 
at the 90% CL is 3.53 x 10^-5 TeV cm^-2 for this observation period. 90% of events 
IceCube would detect from a source at this declination with an E^-2 spectrum 
are between approximately 1 TeV and 3 PeV.

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
Looking for U.S. government information and services? Visit