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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

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

It has long been recognized that magnetic fields play an important role in many astrophysical environments, yet the strength and structure of magnetic fields beyond our solar system have been at best only qualitatively constrained. The…

Astrophysics of Galaxies · Physics 2015-12-02 Glennys R. Farrar

The propagation trajectories of ultra-high-energy cosmic rays (UHECRs) are inevitably affected by Galactic magnetic field (GMF). Because of the inevitability, the importance of the studies of the propagation in GMF have increased to…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Hajime Takami

A good model of the Galactic magnetic field is crucial for estimating the Galactic contribution in dark matter and CMB-cosmology studies, determining the sources of UHECRs, and also modeling the transport of Galactic CRs since the halo…

High Energy Astrophysical Phenomena · Physics 2015-08-20 Glennys R. Farrar , Nafiun Awal , Deepak Khurana , Michael Sutherland

Extensive simulations of the ultra-high energy cosmic ray (UHECR) propagation in the Galactic magnetic field (GMF) have been performed, and the results are presented. The use of different available models of the large-scale GMF and/or…

Astrophysics of Galaxies · Physics 2009-01-23 Serguei Vorobiov , Mustafa Hussain , Darko Veberič

We present the results of simulations of the ultra-high energy cosmic ray (UHECR) propagation in the Galactic magnetic field (GMF). Different assumptions on the large-scale GMF structure and/or primary particle lead to distinctly different…

High Energy Astrophysical Phenomena · Physics 2009-12-08 S. Vorobiov , M. Hussain , D. Veberič

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

The study of propagation of Ultra High Energy Cosmic Rays (UHECR) is a key step in order to unveil the secret of their origin. Up to now it was considered only the influence of the galactic and the extragalactic magnetic fields. In this…

Astrophysics · Physics 2009-11-11 Pascal Chardonnet , Alvise Mattei

The possibility that the magnetic field is strongly correlated with the large-scale structure of the universe has been recently considered in the literature. In this scenario the intergalactic magnetic field has a strong ($\mu$G) regular…

Astrophysics · Physics 2009-10-30 Gustavo Medina Tanco

We analyse several implications of lensing by the regular component of the galactic magnetic field upon the observed properties of ultra high energy cosmic rays. Magnetic fields deflect cosmic ray trajectories, causing flux…

Astrophysics · Physics 2009-10-31 Diego Harari , Silvia Mollerach , Esteban Roulet

Recent work suggests that the cosmic ray spectrum may be dominated by Galactic sources up to ~10^{17.5} eV, and by an extra-Galactic component beyond, provided this latter cuts off below the transition energy. Here it is shown that this…

Astrophysics · Physics 2009-11-10 Martin Lemoine

We study the propagation of ultra-high-energy cosmic rays in the magnetised cosmic web. We focus on the particular case of highly magnetised voids ($B \sim \text{nG}$), using the upper bounds from the Planck satellite. The cosmic web was…

High Energy Astrophysical Phenomena · Physics 2017-08-02 Rafael Alves Batista , Min-Su Shin , Julien Devriendt , Dmitri Semikoz , Guenter Sigl

We discuss the influence of large scale cosmic magnetic fields on the propagation of hadronic cosmic rays above 10^19 eV based on large scale structure simulations. Our simulations suggest that rather substantial deflection up to several…

Astrophysics · Physics 2009-11-10 Guenter Sigl , Francesco Miniati , Torsten Ensslin

We study the deflections of ultra-high-energy cosmic rays in several widely used models of the coherent Galactic magnetic field (GMF), including PT11 (Pshirkov et al. [1]), JF12 (Jansson and Farrar [2]), UF23 (Unger and Farrar [3]) and…

High Energy Astrophysical Phenomena · Physics 2025-11-20 Alexander Korochkin , Dmitri Semikoz , Peter Tinyakov

We study the proton flux expected from sources of ultra high energy cosmic rays (UHECR) in the presence of regular extragalactic magnetic fields. It is assumed that a local source of ultra-high energy protons and the magnetic field are all…

Astrophysics · Physics 2011-05-12 Todor Stanev , David Seckel , Ralph Engel

We study the effects of the galactic magnetic field on the ultra high energy cosmic ray propagation. We show that the deflections of the cosmic ray trajectories can have many important implications such as (de)magnification of the cosmic…

Astrophysics · Physics 2009-10-31 Diego Harari , Silvia Mollerach , Esteban Roulet

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

The images of ultrahigh-energy cosmic ray sources get distorted, in an energy dependent way, by the effects of Galactic and extragalactic magnetic fields. These deflections can also affect the observed cosmic ray spectrum, specially when…

High Energy Astrophysical Phenomena · Physics 2022-03-02 Silvia Mollerach , Esteban Roulet
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