Speaker
Description
The KM3NeT/ARCA neutrino telescope will be fundamental to unveil the high-energy cosmic neutrino sources. In this contribution, we present the expectations of this detector for starburst galaxies observation, both as a diffuse signal and as point-like excess. To describe the diffuse flux, we make use of a recent theoretical model which implemented a “blending” of spectral indexes for high-energy Spectal energy distributions. For the point-like search, we consider the most promising starburst galaxies to be observed as point-like neutrino excesses, following a different theoretical modelling. In particular, we select the Small Magellanic Cloud and the Circinus Galaxy as most suitable candidates to be detected by ARCA. For the diffuse analysis, we provide the 5−year differential sensitivity for two ARCA building blocks, considering both track and shower events, in the range of 100 GeV - 10 PeV. For the point-like analysis, we provide the 6−year differential sensitivity for two ARCA building blocks, only considering track events in the range of 1 TeV - 10 PeV. We found that ARCA has the potential to constrain the selected phenomenological scenarios, showing the minimum of the sensitivity where the theoretical spectral energy distributions are expected to peak. This will provide compelling evidence of the link between starforming processes and hadronic emissions.
| Collaboration | KM3NeT |
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