High-Energy Neutrino Astronomy: where do we stand, where do we go?
Christian Spiering
TL;DR
This paper reviews the progress and future prospects of high-energy neutrino astronomy, highlighting recent discoveries by IceCube and upcoming larger detectors to better understand cosmic neutrino sources.
Contribution
It summarizes the development of neutrino detectors from Baikal-NT200 to IceCube and discusses future projects like GVD, KM3NeT, and IceCube-Gen2 for enhanced astrophysical observations.
Findings
Detection of diffuse astrophysical neutrino flux by IceCube
No clear association with known source classes yet
Upcoming larger detectors will improve sky coverage and source identification
Abstract
With the identification of a diffuse flux of astrophysical ("cosmic") neutrinos in the TeV-PeV energy range, IceCube has opened a new window to the Universe. However, the corresponding cosmic landscape is still uncharted: so far, the observed flux does not show any clear association with known source classes. In the present talk, I sketch the way from Baikal-NT200 to IceCube and summarize IceCube's recent astrophysics results. Finally, I describe the present projects to build even larger detectors: GVD in Lake Baikal, KM3NeT in the Mediterranean Sea and IceCube-Gen2 at the South Pole. These detectors will allow studying the high-energy neutrino sky in much more detail than the present arrays permit.
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