Volume 3, 2020
Gravitational waves and the advent of multi-messenger astronomy
|Number of page(s)||9|
|Section||Physics - Applied Physics|
|Published online||26 May 2020|
Multi-messengers at ultra-high energies with the Pierre Auger Observatory
Laboratoire de Physique Subatomique & Cosmologie, 38026 Grenoble, France
2 Observatorio Pierre Auger, Av. San Martin Norte 304, 5613 Malargüe, Argentine
* Corresponding author: email@example.com
Accepted: 4 May 2020
The Pierre Auger Observatory is an Ultra-High Energy Cosmic Ray (UHECR) detector which has studied cosmic particles with energies above and around 1018 eV for more than 15 years. It has proved to be the most competitive instrument at these energies and has produced a wealth of valuable results, improving our understanding of UHECRs. A complete understanding of these highest energy particles is crucial to understand the extreme astrophysical events in which they are produced and accelerated, as well as their propagation to Earth. In the same range of energies, UHE photons and neutrinos are of paramount importance as, being electrically neutral, they point back to their origin while charged particles are deflected in the galactic and extragalactic magnetic fields. The flux of extragalactic photons, neutrinos, and cosmic rays are believed to be highly linked, by their origin and their interactions. Each messenger provides different information about the potential sources, and having detection means for all four messengers, including gravitational waves, allows us to shed light on energetic sources of astroparticles. The Pierre Auger Observatory benefits from a large exposure and a good angular resolution, and is efficient in detecting UHE photons and neutrinos. These performances make possible follow-up searches for events detected by gravitational waves, such as the binary mergers observed by the LIGO/Virgo detectors, or any other energetic sources of particles.
Key words: Multi-messenger / Pierre Auger observatory / UHECR / Gravitational waves / Neutral particles / Binary black hole mergers / UHE photons / UHE neutrinos
Full author list: http://www.auger.org/archive/authors_2019_07.html
© J. Souchard, Published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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