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arXiv 0902.1742astro-ph.HEastro-ph.CO
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超高能宇宙射线源位置重建及对银河系磁场的约束

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

Geraldina Golup, Diego Harari, Silvia Mollerach, Esteban Roulet

摘要:

本文研究了在探测到多个超高能宇宙线源的情况下,重建超高能宇宙线源位置的可能性以及超高能宇宙线源视线方向上磁场的某些性质。通过考虑银河系磁场的说明性模型,包括一个规则和湍流分量,我们估计的精度,可以实现重建。分析了实验能量和角分辨率对结果的影响。我们表明,如果大约10个事件的能量超过30 EeV的检测来自同一个源,它应该是可能的重建源的位置与0.5 $^{\circ}$的精度和积分的正交分量的磁场沿视线的精度为0.6 $μ$ G千分之二Z $^{-1}$(与Z的粒子的电荷)。

英文摘要:

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 ten 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$^{\circ}$ and the integral of the orthogonal component of the magnetic field along the line of sight with an accuracy of 0.6 $μ$G kpc Z$^{-1}$ (with Z the electric charge of the particles).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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