Source position reconstruction and constraints on the galactic magnetic field from ultra-high energy cosmic rays

被引：28

作者：

Golup, Geraldina ^{[1
]}

Harari, Diego

Mollerach, Silvia

Roulet, Esteban

机构：

[1] Consejo Nacl Invest Cient & Tecn, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina

来源：

ASTROPARTICLE PHYSICS | 2009年 / 32卷 / 05期

关键词：

High energy cosmic rays; LARGE-SCALE STRUCTURE; GALAXY; PROPAGATION; SKY;

D O I：

10.1016/j.astropartphys.2009.09.003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the possibility to reconstruct the position of ultra-high energy cosmic ray sources and some properties of the magnetic field along the line of sight towards them in the case that several events from the same Source are detected. By considering an illustrative model for the galactic magnetic field, including both a regular and a turbulent component, we estimate the accuracy that can be achieved in the reconstruction. We analyse the effect of the experimental energy and angular resolutions on these results. We show that if about 10 events with energies above 30 EeV are detected coming from the same source. it should be possible to reconstruct the source position with an accuracy of 0 5 degrees and the integral of the orthogonal component of the magnetic field along the line of sight with an accuracy of 0.6 mu G kpc Z(-1) (with Z the electric charge of the particles) (C) 2009 Elsevier B.V All rights reserved.

引用

页码：269 / 277

页数：9

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