PKS 2004-447 flare: IceCube neutrino search
ATel #13249; Erik Blaufuss (U. Maryland)
on 31 Oct 2019; 16:06 UT
Credential Certification: Erik Blaufuss (blaufuss@umd.edu)
Referred to by ATel #: 13259
The IceCube Collaboration (http://icecube.wisc.edu/) reports:
IceCube has performed a search for track-like muon neutrino events arriving from the direction of the PKS 2004-447 (ATel #13229, #13233, #13244) in a time window 6 days in duration (2019-10-22 12:00:00.0 UTC to 2019-10-28 12:00:00.0 UTC), during which IceCube was collecting good quality data. One track-like event is found in spatial coincidence with PKS 2004-447 during this time period. We find that these data are well described by atmospheric background expectations, with a p-value of 1.0. We accordingly derive a time-integrated muon-neutrino flux upper limit for this source of E^2 dN/ dE = 7.93 x 10^-4 TeV cm^-2 at 90% CL, under the assumption of an E^-2 power law. 90% of events IceCube would detect from a source at this declination with an E^-2 spectrum are between approximately 100 TeV and 40 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 roc@icecube.wisc.edu.
