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arXiv 0705.1856astro-ph
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俄歇表面探测器阵列时间不确定度测量模型

A model for the time uncertainty measurements in the Auger surface detector array

C. Bonifazi, A. Letessier-Selvon, E. M. Santos

摘要:

精确确定宇宙射线的到达方向是寻找源或研究其在天空中的各向异性的基本前提。实现这些方向的最佳测量的最重要方面之一是在估计过程中适当地考虑测量不确定性。在这篇文章中,我们提出了一个模型的时间测量的俄歇表面探测器阵列的不确定性。我们表明,该模型表示以及测量的不确定性,因此提供了一个最佳的确定到达方向的基础。有了这个模型和对簇射阵面几何形状的描述,就有可能逐个事件地估计与确定宇宙射线到达方向有关的不确定性。

英文摘要:

The precise determination of the arrival direction of cosmic rays is a fundamental prerequisite for the search for sources or the study of their anisotropies on the sky. One of the most important aspects to achieve an optimal measurement of these directions is to properly take into account the measurement uncertainties in the estimation procedure. In this article we present a model for the uncertainties associated with the time measurements in the Auger surface detector array. We show that this model represents well the measurement uncertainties and therefore provides the basis for an optimal determination of the arrival direction. With this model and a description of the shower front geometry it is possible to estimate, on an event by event basis, the uncertainty associated with the determination of the arrival directions of the cosmic rays.

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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