VER J0521+211 flare: IceCube neutrino search
ATel #13532; Alex Pizzuto (U. Wisconsin at Madison), Ignacio Taboada (Georgia Institute of Technology)
on 28 Feb 2020; 20:07 UT
Credential Certification: Ignacio Taboada (itaboada@gatech.edu)
Subjects: Gamma Ray, >GeV, TeV, VHE, Neutrinos, Blazar
The IceCube Collaboration (http://icecube.wisc.edu) reports:
IceCube has performed a search for track-like muon neutrino events arriving from the direction of VER J0521+211 (ATel #13522) in a time window 1 day in duration beginning at the start of the VERITAS observations (Start: 2020-02-25 02:52:48 UTC to End: 2020-02-25 02:52:48 UTC), during which IceCube was collecting good quality data. Zero track-like events are found in spatial coincidence with VER J0521+211 during this time period. We accordingly derive a time-integrated muon-neutrino flux upper limit for this source of E^2 dN/ dE = 4.41 x 10^-5 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 1 TeV and 1 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.
