GRB 201216C: IceCube neutrino search
ATel #14277; Justin Vandenbroucke (University of Wisconsin)
on 17 Dec 2020; 19:38 UT
Credential Certification: Justin Vandenbroucke (justin.vandenbroucke@wisc.edu)
GRB 201216C: IceCube neutrino search
The IceCube Collaboration (http://icecube.wisc.edu/) reports:
IceCube has performed a search for track-like muon neutrino events arriving from the direction of GRB 201216C (GCN #29061; MAGIC detected in VHE, ATel #14275) in a time window one hour in duration, beginning 10 minutes prior to the Swift BAT trigger (2020-12-16 22:57:31 UTC to 2020-12-16 23:57:31 UTC), during which IceCube was collecting good quality data. The IceCube analysis used the enhanced Swift-XRT position (GCN #29067). Zero track-like events are found in spatial coincidence with GRB 201216C during this time period. We accordingly derive a time-integrated muon-neutrino flux upper limit for this source of E^2 dN/ dE = 4.0 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.
