Nova PNV J17224490-4137160: Upper limits from a neutrino search with IceCube
ATel #16019; Samuel Hori (UW-Madison), Justin Vandenbroucke (UW-Madison), Marcos Santander (U. Alabama) for the IceCube Collaboration
on 28 Apr 2023; 03:04 UT
Credential Certification: Justin Vandenbroucke (justin.vandenbroucke@wisc.edu)
Subjects: Neutrinos, Nova
Referred to by ATel #: 16069
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 classical nova PNV J17224490-4137160 (CBET #5245, RA=260.69 deg, Dec = -41.621 deg J2000), which was also detected as a GeV gamma-ray source by Fermi-LAT (ATel #16002).
The search was performed using a time window of three days approximately centered on the highest energy photon detected by Fermi-LAT (2023-04-20 09:36:00 to 2023-04-23 09:36:00 UT), during which IceCube was collecting good quality data. We find that the data are consistent with atmospheric background expectations, with a p-value of 1. We accordingly derive a time-integrated muon-neutrino flux upper limit for this source of E^2 dN/dE = 5.9e-1 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 90 TeV to 20 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.
