SN 2023ixf: Upper limits from a neutrino search with IceCube
ATel #16043; Jessie Thwaites (UW - Madison), Justin Vandenbroucke (UW - Madison), Marcos Santander (U. Alabama) for the IceCube Collaboration
on 21 May 2023; 17:35 UT
Credential Certification: Justin Vandenbroucke (justin.vandenbroucke@wisc.edu)
Subjects: Neutrinos, Supernovae
Referred to by ATel #: 16075
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 Type II supernova SN 2023ixf in a time window of +/- 2 days from the ZTF detection time (2023-05-17 07:45:07.200 to 2023-05-21 07:45:07.200) during which IceCube was collecting good quality data. We report a p-value of 0.18, consistent with background expectation.
We accordingly derive a time-integrated muon-neutrino flux upper limit for this source of E^2 dN/ dE = 7.3 x 10^-2 GeV 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 have energies in the approximate energy range between 600 GeV and 250 TeV.
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.
[1] IceCube Collaboration, R. Abbasi et al., ApJ 910 4 (2021)
