Nova Neutrinos in the Multi-Messenger Era
arXiv:2209.04873 · doi:10.1088/1475-7516/2023/03/015
Abstract
The recently discovered high energy emission from the recurrent nova RS Ophiuchi by Fermi-LAT ( 100 MeV), H.E.S.S. and MAGIC ( 100 GeV), hints towards a possible hadronic origin of this radiation component. From the observed high energy photon flux we derive the expected number of neutrino events that could be detected by present and future neutrino telescopes in the different energy ranges. We find that both hadronic and leptonic processes remain valid interpretations for this emission. Preliminary estimates indicate that with the "next-generation" instrument IceCube-Gen2, the expected number of neutrino detections from Galactic novae is of the order of once per decade. Given the current uncertainties in the frequency of the occurrence of nova outbursts, the detection rate may possibly increase to up to once every three years.
arXiv comment14 pages, 2 figures, accepted for publication in JCAP
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