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We apply statistical inference on the Pierre Auger Open Data to discern for the first time the full mass composition of cosmic rays at different energies. Working with longitudinal electromagnetic profiles of cosmic ray showers, in…

High Energy Astrophysical Phenomena · Physics 2023-07-26 Blaz Bortolato , Jernej F. Kamenik , Michele Tammaro

We explore the potential of a future, ultra-high energy cosmic ray (UHECR) experiment, that is able to overcome the limitation of low statistics, to detect anisotropy in the arrival directions of UHECRs. We concentrate on the lower energy…

High Energy Astrophysical Phenomena · Physics 2015-01-28 Foteini Oikonomou , Kumiko Kotera , Filipe B. Abdalla

Time series classification is a task that aims at classifying chronological data. It is used in a diverse range of domains such as meteorology, medicine and physics. In the last decade, many algorithms have been built to perform this task…

Machine Learning · Computer Science 2021-06-16 Michael Franklin Mbouopda , Engelbert Mephu Nguifo

Image-based environment perception is an important component especially for driver assistance systems or autonomous driving. In this scope, modern neuronal networks are used to identify multiple objects as well as the according position and…

Computer Vision and Pattern Recognition · Computer Science 2023-02-07 Fabian Küppers

We discuss the anisotropic arrival directions of the ultra high energy cosmic rays detected by Auger which I consider one of the biggest discoverie in astrophysics during the last year.

Astrophysics · Physics 2008-08-11 Todor Stanev

The measurement of large scale anisotropies in cosmic ray arrival directions at energies above 10^13 eV is performed through the detection of Extensive Air Showers produced by cosmic ray interactions in the atmosphere. The observed…

Instrumentation and Methods for Astrophysics · Physics 2011-08-31 R. Bonino , V. V. Alekseenko , O. Deligny , P. L. Ghia , M. Grigat , A. Letessier-Selvon , H. Lyberis , S. Mollerach , S. Over , E. Roulet

The average profiles of cosmic ray shower development as a function of atmospheric depth are measured for the first time with the Fluorescence Detectors at the Pierre Auger Observatory. The profile shapes are well reproduced by the…

High Energy Astrophysical Phenomena · Physics 2019-06-12 Sofia Andringa

The data collected by the Pierre Auger Observatory are analyzed to search for coincidences between the arrival directions of high-energy cosmic rays and the positions in the sky of astrophysical transients. Special attention is directed…

Astrophysics · Physics 2019-08-13 Luis Anchordoqui

With the knowledge and statistical precision derived from two decades of measurement, the Pierre Auger Observatory has significantly deepened our understanding of ultra-high-energy cosmic rays while unearthing an increasingly complex…

Instrumentation and Methods for Astrophysics · Physics 2025-08-12 David Schmidt

Precision astrometry offers a way to probe new physics. By measuring the angular position of light sources at unprecedented precision, astrometry could probe minuscule fluctuations of underlying spacetime. This work explores the possibility…

High Energy Physics - Phenomenology · Physics 2024-06-07 Hyungjin Kim

The identification of potential sources of ultra-high-energy cosmic rays (UHECRs) remains challenging due to magnetic deflections and propagation losses, which are particularly strong for nuclei. In previous iterations of this work, we…

High Energy Astrophysical Phenomena · Physics 2025-09-19 Keito Watanabe , Anatoli Fedynitch , Francesca Capel , Hiroyuki Sagawa

A numerical likelihood approach to the determination of cosmic ray anisotropies is presented which offers many advantages over other approaches. It allows a wide range of statistically meaningful hypotheses to be compared even when full sky…

Astrophysics · Physics 2007-05-23 Carlos Hojvat , Thomas P. McCauley , Stephen Reucroft , John D. Swain

The recent progress in the radio detection technique for air showers paves the path to future cosmic-ray radio detectors. Digital radio arrays allow for a measurement of the air-shower energy and depth of its maximum with a resolution…

The collection of a statistically significant number detected of cosmic rays with energy above $10^{17}$ to $10^{18}$ eV requires widely-spaced particle detectors at the ground level to detect the extensive air showers induced in the…

High Energy Physics - Experiment · Physics 2023-01-11 Alan Coleman , Pierre Billoir , Oliver Deligny

A thorough search for large scale anisotropies in the distribution of arrival directions of cosmic rays detected above $10^{18}$ eV at the Pierre Auger Observatory is reported. For the first time, these large scale anisotropy searches are…

High Energy Astrophysical Phenomena · Physics 2013-01-23 Pierre Auger Collaboration

The recent results of the Pierre Auger Observatory on the possible correlation of Ultra High Energy Cosmic Rays events and several nearby discrete sources could be the starting point of a new era with charged particles astronomy. In this…

High Energy Astrophysical Phenomena · Physics 2013-06-04 R. Aloisio , D. Boncioli

To interpret the mean depth of cosmic ray air shower maximum and its dispersion, we parametrize those two observables as functions of the first two moments of the $\ln A$ distribution. We examine the goodness of this simple method through…

High Energy Astrophysical Phenomena · Physics 2014-07-01 Pierre Auger Collaboration

Mission planners for aircraft operating under threat of detection by ground-based radar systems are concerned with the probability of detection. Current path planning methods for such scenarios consider the aircraft pose, radar position,…

Systems and Control · Electrical Eng. & Systems 2022-07-11 Austin Costley , Greg Droge , Randall Christensen , Robert C. Leishman , James Swedeen

As the use of Artificial Intelligence (AI) components in cyber-physical systems is becoming more common, the need for reliable system architectures arises. While data-driven models excel at perception tasks, model outcomes are usually not…

Machine Learning · Computer Science 2023-06-01 Janek Groß , Michael Kläs , Lisa Jöckel , Pascal Gerber

The sources of ultra-high energy cosmic rays are not yet known. However, the discovery of anisotropic cosmic rays above 57x10^18 eV by the Pierre Auger Observatory suggests that a direct source detection may soon be possible. The…

High Energy Astrophysical Phenomena · Physics 2009-11-13 Patrick Younk
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