Multi-Messenger Physics with the Pierre Auger Observatory

AUGER COLLABORATION (VER F. SANCHEZ EN PUBL. ADJUNTA)

Frontiers in Astronomy and Space Sciences

Frontiers

Año: 2019

An overview of the multi-messenger capabilities of the Pierre Auger Observatory is presented.The techniques and performance of searching for Ultra-High Energy neutrinos, photons andneutrons are described. Some of the most relevant results are reviewed, such as stringentupper bounds that were placed to a flux of diffuse cosmogenic neutrinos and photons, boundsplaced on neutrinos emitted from compact binary mergers that were detected by LIGO and Virgoduring their first and second observing runs, as well as searches for high energy photons andneutrons from the Galactic center that constrain the properties of the putative Galactic PeVatron,observed by the H.E.S.S. collaboration. The observation of directional correlations betweenultra-high energy cosmic rays and either high energy astrophysical neutrinos or specific sourcepopulations, weighted by their electromagnetic radiation, are also discussed. They constituteadditional multi-messenger approaches aimed at identifying the sources of high energy cosmicrays.