Multi-Messenger Physics with the Pierre Auger Observatory

THE PIERRE AUGER COLLABORATION (P.HANSEN PERTENECE A LA COLABORACION-ORDEN ALFABETICO)

Frontiers in Astronomy and Space Sciences

Frontiers

Año: 2019 vol. 1 p. 1 - 19

An overview of the multi-messenger capabilities of the Pierre Auger Observatoryis presented. The techniques and performance of searching for Ultra-High Energyneutrinos, photons and neutrons are described. Some of the most relevant resultsare reviewed, such as stringent upper bounds that were placed to a flux of diffusecosmogenic neutrinos and photons, bounds placed on neutrinos emitted from compactbinary mergers that were detected by LIGO and Virgo during their first and secondobserving runs, as well as searches for high energy photons and neutrons from theGalactic center that constrain the properties of the putative Galactic PeVatron, observedby the H.E.S.S. collaboration. The observation of directional correlations betweenultra-high energy cosmic rays and either high energy astrophysical neutrinos or specificsource populations, weighted by their electromagnetic radiation, are also discussed.They constitute additional multi-messenger approaches aimed at identifying the sourcesof high energy cosmic rays.