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相关论文: Towards extracting cosmic magnetic field structure…

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We suggest a two-dimensional wavelet devised to deduce the large-scale structure of a physical field (e.g., the Galactic magnetic field) from its integrals along straight paths from irregularly spaced data points to a fixed interior point…

天体物理学 · 物理学 2009-11-07 R. Stepanov , P. Frick , A. Shukurov , D. Sokoloff

We study the deflection of ultra high energy cosmic ray protons in different models of the regular galactic magnetic field. Such particles have gyroradii well in excess of 1 kpc and their propagation in the galaxy reflects only the large…

天体物理学 · 物理学 2010-11-30 Todor Stanev

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

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

Arrival directions of ultra-high energy cosmic rays from the direction of ten brightest radio sources lying within 50 Mpc from our Galaxy were studied by using recent models of the largescale Galactic magnetic field. A detailed study, where…

高能天体物理现象 · 物理学 2015-10-01 Radomír Šmída , Ralph Engel

Magnetic fields play a critical role in the propagation of charged cosmic rays. Particular field configurations supported by different astrophysical objects may be observable in cosmic ray maps. We consider a simple configuration, a…

高能天体物理现象 · 物理学 2015-05-19 E. Battaner , J. Castellano , M. Masip

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

(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…

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…

星系天体物理 · 物理学 2015-12-02 Glennys R. Farrar

Due to the action of the intervening cosmic magnetic fields, ultra-high energy cosmic rays (UHECRs) can be deflected in such a way as to create clustered energy-ordered filamentary structures in the arrival direction of these particles, the…

天体物理仪器与方法 · 物理学 2013-12-11 M. Zimbres , R. Alves Batista , E. Kemp

The deflection of extragalactic ultra-high energy protons (E > 4E19 eV) travelling to our galaxy is studied assuming that visible matter traces both, the sources of the particles and the intergalactic magnetic field. The reversal scale and…

天体物理学 · 物理学 2007-05-23 Gustavo A. Medina Tanco

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…

高能天体物理现象 · 物理学 2017-08-02 Rafael Alves Batista , Min-Su Shin , Julien Devriendt , Dmitri Semikoz , Guenter Sigl

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 present a suite of models of the coherent magnetic field of the Galaxy (GMF) based on new divergence-free parametric functions describing the global structure of the field. The model parameters are fit to the latest full-sky Faraday…

星系天体物理 · 物理学 2024-08-14 Michael Unger , Glennys R. Farrar

We present a novel approach to search for origins of ultra-high energy cosmic rays. These particles are likely nuclei that initiate extensive air showers in the Earth's atmosphere. In large-area observatories, the particle arrival…

天体物理仪器与方法 · 物理学 2019-02-13 Martin Erdmann , Lukas Geiger , David Schmidt , Martin Urban , Marcus Wirtz

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 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…

天体物理学 · 物理学 2009-10-31 Diego Harari , Silvia Mollerach , Esteban Roulet

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…

高能天体物理现象 · 物理学 2014-11-20 G. Giacinti , X. Derkx , D. V. Semikoz

We use a new method to estimate the injected mass composition of ultrahigh cosmic rays (UHECRs) at energies higher than 10 EeV. The method is based on comparison of the energy-dependent distribution of cosmic ray arrival directions as…

高能天体物理现象 · 物理学 2024-07-04 Telescope Array Collaboration , R. U. Abbasi , Y. Abe , T. Abu-Zayyad , M. Allen , Y. Arai , R. Arimura , E. Barcikowski , J. W. Belz , D. R. Bergman , S. A. Blake , I. Buckland , B. G. Cheon , M. Chikawa , T. Fujii , K. Fujisue , K. Fujita , R. Fujiwara , M. Fukushima , G. Furlich , N. Globus , R. Gonzalez , W. Hanlon , N. Hayashida , H. He , R. Hibi , K. Hibino , R. Higuchi , K. Honda , D. Ikeda , N. Inoue , T. Ishii , H. Ito , D. Ivanov , A. Iwasaki , H. M. Jeong , S. Jeong , C. C. H. Jui , K. Kadota , F. Kakimoto , O. Kalashev , K. Kasahara , S. Kasami , S. Kawakami , K. Kawata , I. Kharuk , E. Kido , H. B. Kim , J. H. Kim , J. H. Kim , S. W. Kim , Y. Kimura , I. Komae , V. Kuzmin , M. Kuznetsov , Y. J. Kwon , K. H. Lee , B. Lubsandorzhiev , J. P. Lundquist , H. Matsumiya , T. Matsuyama , J. N. Matthews , R. Mayta , K. Mizuno , M. Murakami , I. Myers , K. H. Lee , S. Nagataki , K. Nakai , T. Nakamura , E. Nishio , T. Nonaka , H. Oda , S. Ogio , M. Onishi , H. Ohoka , N. Okazaki , Y. Oku , T. Okuda , Y. Omura , M. Ono , A. Oshima , H. Oshima , S. Ozawa , I. H. Park , K. Y. Park , M. Potts , M. S. Pshirkov , J. Remington , D. C. Rodriguez , C. Rott , G. I. Rubtsov , D. Ryu , H. Sagawa , R. Saito , N. Sakaki , T. Sako , N. Sakurai , D. Sato , K. Sato , S. Sato , K. Sekino , P. D. Shah , N. Shibata , T. Shibata , J. Shikita , H. Shimodaira , B. K. Shin , H. S. Shin , D. Shinto , J. D. Smith , P. Sokolsky , B. T. Stokes , T. A. Stroman , Y. Takagi , K. Takahashi , M. Takamura , M. Takeda , R. Takeishi , A. Taketa , M. Takita , Y. Tameda , K. Tanaka , M. Tanaka , Y. Tanoue , S. B. Thomas , G. B. Thomson , P. Tinyakov , I. Tkachev , H. Tokuno , T. Tomida , S. Troitsky , R. Tsuda , Y. Tsunesada , S. Udo , F. Urban , D. Warren , T. Wong , K. Yamazaki , K. Yashiro , F. Yoshida , Y. Zhezher , Z. Zundel

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