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We present a method to correct for deflections of ultra-high energy cosmic rays in the galactic magnetic field. We perform these corrections by simulating the expected arrival directions of protons using a parameterization of the field…

High Energy Astrophysical Phenomena · Physics 2015-10-27 Martin Erdmann , Gero Mueller , Martin Urban

We present a novel method to search for structures of coherently aligned patterns in ultra-high energy cosmic-ray arrival directions simultaneously across the entire sky. This method can be used to obtain information on the Galactic…

Instrumentation and Methods for Astrophysics · Physics 2022-01-31 Marcus Wirtz , Teresa Bister , Martin Erdmann

Locating the sources of ultra-high energy cosmic rays (UHECRs) still remains a difficult puzzle for modern astrophysics. A major hurdle in the search for the sources is the fact that UHECRs are deflected by the Galactic magnetic field…

High Energy Astrophysical Phenomena · Physics 2019-03-12 G. Magkos , V. Pavlidou

We present a method to measure cosmic magnetic fields with ultra high energy cosmic rays (UHECRs). We apply an advanced autocorrelation method to simulated UHECRs which includes their directional as well as energy information. Without…

High Energy Astrophysical Phenomena · Physics 2010-04-22 Martin Erdmann , Peter Schiffer

(abridged) Ultra-high energy cosmic rays (UHECRs) are highly energetic charged particles with energies exceeding $10^{18}$ eV. Identifying their sources and production mechanism can provide insight into many open questions in astrophysics…

High Energy Astrophysical Phenomena · Physics 2023-10-04 Alexandros Tsouros , Gordian Edenhofer , Torsten Enßlin , Michalis Mastorakis , Vasiliki Pavlidou

(abridged) Ultra-high energy cosmic rays (UHECRs) are extremely energetic charged particles with energies surpassing $10^{18}$ eV. Their sources remain elusive, obscured by deflections caused by the Galactic magnetic field (GMF). This…

High Energy Astrophysical Phenomena · Physics 2024-10-02 Alexandros Tsouros , Abhijit B. Bendre , Gordian Edenhofer , Torsten Enßlin , Philipp Frank , Michalis Mastorakis , Vasiliki Pavlidou

We propose a new way to detect individual bright Ultra-High Energy Cosmic Ray (UHECR) sources above background if the Galactic Magnetic Field (GMF) gives the main contribution to UHECR deflections. This method can be directly applied to…

High Energy Astrophysical Phenomena · Physics 2011-07-13 G. Giacinti , D. V. Semikoz

Since ultra-high-energy cosmic rays (UHECRs) are electrically charged particles, they are deflected by magnetic fields. Those magnetic fields can act as lenses, altering their trajectories and (de)magnifying their apparent source images.…

High Energy Astrophysical Phenomena · Physics 2025-09-24 Danelise de Oliveira Franco , Günter Sigl

We study the influence of the regular component of the Galactic magnetic field (GMF) on the arrival directions of ultra-high energy cosmic rays (UHECRs). We find that, if the angular resolution of current experiments has to be fully…

Astrophysics · Physics 2009-11-13 M. Kachelriess , P. D. Serpico , M. Teshima

We estimate the biases caused by the coherent deflection of cosmic rays due to the Galactic magnetic field (GMF) in maximum-likelihood analysis for searches of ultrahigh-energy cosmic ray (UHECR) sources in the literature. We simulate mock…

High Energy Astrophysical Phenomena · Physics 2023-06-14 Ryo Higuchi , Takashi Sako , Toshihiro Fujii , Kazumasa Kawata , Eiji Kido

Planned and ongoing campaigns for the acquisition of high-quality local measurements of the Galactic magnetic field (GMF) at interstellar cloud locations have generated intense interest in the use of such measurements to accurately…

High Energy Astrophysical Phenomena · Physics 2025-07-30 S. Romanopoulos , M. Mastorakis , V. Pavlidou

Ultra-high energy cosmic rays are mostly charged particles and they are therefore deflected by magnetic fields on their path from their sources to Earth. An interesting phenomenon arising from these deflections is the appearance of multiple…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Geraldina Golup , Diego Harari , Silvia Mollerach , Esteban Roulet

The next generation of ultra high energy cosmic ray experiments will probably detect several dozens of events clustered around the direction towards each of the most powerful extragalactic sources. We develop a method which could make…

Astrophysics · Physics 2009-11-07 Diego Harari , Silvia Mollerach , Esteban Roulet

The puzzle of ultra-high energy cosmic rays (UHECRs) still remains unresolved. With the progress in preparation of next generation experiments (AUGER, EUSO, OWL) grows also the importance of directional analysis of existing and future…

Astrophysics · Physics 2009-11-10 Michael Prouza , Radomir Smida

We express the mean square deflections of the ultra-high energy cosmic rays (UHECR) caused by the random component of the Galactic magnetic field (GMF) in terms of the GMF power spectrum. We use recent measurements of the GMF spectra in…

Astrophysics · Physics 2009-11-10 P. G. Tinyakov , I. I. Tkachev

We calculate the arrival direction distribution of ultra-high-energy cosmic rays (UHECRs) with a new suite of models of the Galactic magnetic field (GMF), assuming sources follow the large-scale structure of the Universe. Compared to…

High Energy Astrophysical Phenomena · Physics 2024-11-06 Teresa Bister , Glennys R. Farrar , Michael Unger

We consider the effects of the Galactic magnetic field on the propagation of ultra high energy cosmic rays (UHECRs). By employing two methods of trajectory simulation, we investigate the possibility that UHECRs are produced within the…

Astrophysics · Physics 2007-05-23 Sean O'Neill , Angela V. Olinto , Pasquale Blasi

We study the possibility to reconstruct the position of ultra-high energy cosmic ray sources and some properties of the magnetic field along the line of sight towards them in the case that several events from the same source are detected.…

High Energy Astrophysical Phenomena · Physics 2014-11-18 Geraldina Golup , Diego Harari , Silvia Mollerach , Esteban Roulet

Deflection of ultra high energy cosmic rays (UHECRs) by the Galactic magnetic field (GMF) may be sufficiently strong to hinder identification of the UHECR source distribution. A common method for determining the effect of GMF models on…

Instrumentation and Methods for Astrophysics · Physics 2010-10-18 Michael S. Sutherland , Brian M. Baughman , James J. Beatty

In this paper, we suggest a new way to identify single bright sources of Ultra High Energy Cosmic Rays (UHECR) on the sky, on top of background. We look for doublets of events at the highest energies, E > 6 x 10^19 eV, and identify low…

High Energy Astrophysical Phenomena · Physics 2014-11-20 G. Giacinti , X. Derkx , D. V. Semikoz
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