Ultrahigh energy nuclei in the turbulent Galactic magnetic field

被引：46
作者：
Giacinti, G. [1 ,2 ]
Kachelriess, M. [3 ]
Semikoz, D. V. [2 ,4 ]
Sigl, G. [1 ]
机构：
[1] Univ Hamburg, Inst Theoret Phys 2, Hamburg, Germany
[2] APC, Paris, France
[3] NTNU, Inst Fys, Trondheim, Norway
[4] Russian Acad Sci, Inst Nucl Res, Moscow, Russia
来源：
ASTROPARTICLE PHYSICS | 2011年 / 35卷 / 04期
关键词：
Ultrahigh energy cosmic rays; Galactic magnetic fields; LARGE-SCALE STRUCTURE; COSMIC-RAYS; ROTATION MEASURES; MILKY-WAY; DEFLECTIONS;
D O I：
10.1016/j.astropartphys.2011.07.006
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this work we study how the turbulent component of the Galactic magnetic field (GMF) affects the propagation of ultrahigh energy heavy nuclei. We investigate first how the images of individual sources and of the supergalactic plane depend on the properties of the turbulent GMF. Then we present a quantitative study of the impact of the turbulent field on (de-)magnification of source fluxes, due to magnetic lensing effects. We also show that it is impossible to explain the Pierre Auger data assuming that all ultrahigh energy nuclei are coming from Cen A, even in the most favorable case of a strong, extended turbulent field in the Galactic halo. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：192 / 200
页数：9
相关论文
共 61 条
  • [11] [Anonymous], 2010, JCAP
  • [12] [Anonymous], 2005, Journal of Cosmology and Astroparticle Physics
  • [13] Observations of magnetic fields in the Milky Way and in nearby galaxies with a Square Kilometre Array
    Beck, R
    Gaensler, BM
    [J]. NEW ASTRONOMY REVIEWS, 2004, 48 (11-12) : 1289 - 1304
  • [14] Beck R, 2009, AIP CONF PROC, V1085, P83
  • [15] BELZ J, 2009, P 31 INT COSM RAY C
  • [16] Rotation measures of extragalactic sources behind the southern Galactic plane: New insights into the large-scale magnetic field of the inner Milky Way
    Brown, J. C.
    Haverkorn, M.
    Gaensler, B. M.
    Taylor, A. R.
    Bizunok, N. S.
    McClure-Griffiths, N. M.
    Dickey, J. M.
    Green, A. J.
    [J]. ASTROPHYSICAL JOURNAL, 2007, 663 (01) : 258 - 266
  • [17] CAVALLO G, 1978, ASTRON ASTROPHYS, V65, P415
  • [18] Das S., ARXIV08010371ASTROPH
  • [19] Mapping deflections of extragalactic ultrahigh-energy cosmic rays in magnetohydrodynamic simulations of the Local Universe
    Dolag, K
    Grasso, D
    Springel, V
    Tkachev, I
    [J]. JETP LETTERS, 2004, 79 (12) : 583 - 587
  • [20] Dolag K., 2009, JCAP, V0901, P033
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