The present white paper is submitted as part of the “Snowmass” process to help inform the
long-term plans of the United States Department of Energy and the National Science …

Neutrinos with energies above 1017 eV are detectable with the Surface Detector Array of the
Pierre Auger Observatory. The identification is efficiently performed for neutrinos of all …

Upcoming neutrino telescopes may discover ultra-high-energy (UHE) cosmic neutrinos, with
energies beyond 100 PeV, in the next 10–20 years. Finding their sources would identify …

We study in detail the sensitivity of the Antarctic Impulsive Transient Antenna (ANITA) to
possible ν τ point source fluxes detected via τ-lepton-induced air showers. This investigation …

On 2017 September 22, a through-going muon that deposited 23.7 TeV was detected at the
IceCube telescope (Aartsen et al. 2017) in Antarctica, likely to be produced by a neutrino …

We present a semianalytical method for the calculation of coherent Askaryan radiation in
showers induced by neutrinos of any flavor in ice. We compare our results with those of a full …

The recent detection of possible neutrino emission from the blazar TXS 0506+ 056 was the
first high-energy neutrino associated with an astrophysical source, making this special type …

The low-luminosity active galactic nuclei M87, archetype of Fanaroff–Riley I radio galaxies,
was observed in a historically quiet state in 2017. While one-zone leptonic jet models alone …

The Pierre Auger Observatory, being the largest air-shower experiment in the world, offers
an unprecedented exposure to neutral particles at the highest energies. Since the beginning …

Abstract The Pierre Auger Observatory was built to study cosmic rays of the highest
energies. It is installed in the Departments of Malargüe and San Rafael in the Province of …