Tracing protons through the Galactic magnetic field: a clue for charge composition of ultra-high-energy cosmic rays

被引：91

作者：

Tinyakov, PG ^{[1
]}

Tkachev, II

机构：

[1] Univ Lausanne, Inst Theoret Phys, CH-1015 Lausanne, Switzerland

[2] Nucl Res Inst, Moscow 117312, Russia

[3] CERN, Div Theory, CH-1211 Geneva, Switzerland

来源：

ASTROPARTICLE PHYSICS | 2002年 / 18卷 / 02期

关键词：

D O I：

10.1016/S0927-6505(02)00109-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We reconstruct the trajectories of ultra-high-energy cosmic rays (UHECR)-observed by the AGASA experiment-in the Galactic magnetic field assuming that all particles have the same charge. We then study correlations between the reconstructed events and BL Lacertae (BL Lacs). The correlations have significance below 10(-3) in the case of particles with charge +1. In the case of charge -1 the correlations are absent. We interpret this as evidence that protons are present in the flux of UHECR. Observed correlation provides an independent evidence that BL Lacs emit UHECR. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：165 / 172

页数：8

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