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相关论文: UHECR deflections in the coherent Galactic magneti…

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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…

天体物理学 · 物理学 2009-11-13 M. Kachelriess , P. D. Serpico , M. Teshima

Our understanding of the Galactic magnetic field (GMF) has increased considerably in recent years, while at the same time remaining far from adequate. By way of illustration, the Jansson and Farrar (2012) (JF12) GMF model is described,…

高能天体物理现象 · 物理学 2014-08-08 Glennys R. Farrar

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.…

高能天体物理现象 · 物理学 2025-09-24 Danelise de Oliveira Franco , Günter Sigl

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…

天体物理学 · 物理学 2009-11-10 P. G. Tinyakov , I. I. Tkachev

Ultrahigh-energy cosmic rays (UHECRs) experience deflections as they traverse the Galactic magnetic field (GMF), which must be accounted for when tracing them back to their sources. After briefly summarizing our results on uncertainties in…

高能天体物理现象 · 物理学 2025-03-04 Michael Unger , Glennys R. Farrar

We report results of the first comprehensive, high resolution study of the deflections of UHECRs using a realistic model of the Galactic magnetic field and extending to sufficiently low rigidities, R = E/Z = 10^18 V, to describe Fe in the…

高能天体物理现象 · 物理学 2019-05-15 Glennys R. Farrar , Michael S. Sutherland

We predict the arrival direction distribution of cosmic rays including their deflection in the Galactic magnetic field, for several combinations of source and composition hypotheses: the sources are hard X-ray AGNs or uniformly sample the…

高能天体物理现象 · 物理学 2013-08-20 J. Roberts , G. Farrar

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…

天体物理学 · 物理学 2009-11-10 Michael Prouza , Radomir Smida

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…

高能天体物理现象 · 物理学 2023-06-14 Ryo Higuchi , Takashi Sako , Toshihiro Fujii , Kazumasa Kawata , Eiji Kido

We study the influence of the random part of the Galactic magnetic field on the propagation of ultra high-energy cosmic rays. Within very mild approximations about the properties of the electron density fluctuations in the Galaxy we are…

宇宙学与河外天体物理 · 物理学 2016-02-25 M. S. Pshirkov , P. G. Tinyakov , F. R. Urban

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…

星系天体物理 · 物理学 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…

高能天体物理现象 · 物理学 2009-12-08 S. Vorobiov , M. Hussain , D. Veberič

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…

高能天体物理现象 · 物理学 2019-03-12 G. Magkos , V. 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…

高能天体物理现象 · 物理学 2011-07-13 G. Giacinti , D. V. Semikoz

We evaluate the validity of leading models of the Galactic magnetic field for predicting UHECR deflections from Cen A. The Jansson-Farrar 2012 GMF model (JF12), which includes striated and random components as well as an out-of-plane…

高能天体物理现象 · 物理学 2013-07-10 Glennys R. Farrar , Ronnie Jansson , Ilana J. Feain , B. M. Gaensler

We present the results of a study that simulates trajectories of ultra-high energy cosmic rays from Centaurus A to Earth, for particle rigidities from $E/Z = 2$ EV to 100 EV, i.e., covering the possibility of primary particles as heavy as…

高能天体物理现象 · 物理学 2014-08-21 Azadeh Keivani , Glennys R. Farrar , Michael Sutherland

We investigate the deflections of UHE protons by Galactic magnetic field(GMF) using four conventional GMF models in order to discuss the positional correlation between the arrival distribution of UHECRs and their sources. UHE protons coming…

天体物理学 · 物理学 2009-02-10 Hajime Takami , Katsuhiko Sato

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…

高能天体物理现象 · 物理学 2015-05-27 Hajime Takami

We summarise the results found following a study of the effects that Galactic magnetic fields can have on the propagation of cosmic rays from local extragalactic sources. This study focuses on the coherent structures in the Jansson-Farrar…

高能天体物理现象 · 物理学 2019-08-08 Andrew M. Taylor , A. M. Hillas

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…

高能天体物理现象 · 物理学 2024-11-06 Teresa Bister , Glennys R. Farrar , Michael Unger
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