Weakly interacting neutrinos are ideal astronomical messengers because they travel
through space without deflection by magnetic fields and, essentially, without absorption …

The observation of electromagnetic radiation from radio to γ-ray wavelengths has provided a
wealth of information about the Universe. However, at PeV (10 15 eV) energies and above …

The IceCube Neutrino Observatory has established the existence of a high-energy all-sky
neutrino flux of astrophysical origin. This discovery was made using events interacting within …

We present a measurement of the high-energy astrophysical muon–neutrino flux with the
IceCube Neutrino Observatory. The measurement uses a high-purity selection of650k …

High-energy neutrino astrophysics has come of age with IceCube's discovery of neutrinos in
the TeV to PeV energy range, attributable to extragalactic sources at cosmological …

Astrophysical neutrinos are excellent probes of astroparticle physics and high-energy
physics. With energies far beyond solar, supernovae, atmospheric, and accelerator …

The origins of the high-energy cosmic neutrino flux remain largely unknown. Recently, one
high-energy neutrino was associated with a tidal disruption event (TDE). Here we present …

Recent multimessenger studies have provided evidence for high-energy neutrino sources
that are opaque to GeV–TeV gamma rays. We present model-independent studies on the …

We consider implications of high-energy neutrino emission from blazar flares, including the
recent event IceCube-170922A and the 2014–2015 neutrino flare that could originate from …

The latest IceCube data suggest that the all-flavor cosmic neutrino flux may be as large as
10-7 GeV cm-2 s-1 sr-1 around 30 TeV. We show that, if sources of the TeV-PeV neutrinos …