Proton and Neutrino Extragalactic Astronomy

TL;DR

This paper explores how high-energy protons and neutrinos from extragalactic sources can be detected and related, emphasizing the potential of future air shower and neutrino telescopes to advance extragalactic astronomy.

Contribution

It analyzes the connection between aggregate and individual source signals of protons and neutrinos, and compares the sensitivities of current and future detection methods.

Findings

Proton and neutrino signals are correlated with the brightest extragalactic sources.

Future detectors will improve the detection sensitivity for high-energy extragalactic particles.

The study highlights the complementary nature of proton and neutrino astronomy.

Abstract

The study of extragalactic sources of high energy radiation via the direct measurement of the proton and neutrino fluxes that they are likely to emit is one of the main goals for the future observations of the recently developed air showers detectors and neutrino telescopes. In this work we discuss the relation between the inclusive proton and neutrino signals from the ensemble of all sources in the universe, and the resolved signals from the closest and brightest objects. We also compare the sensitivities of proton and neutrino telescopes and comment on the relation between these two new astronomies.