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arXiv 1702.02835astro-ph.IMastro-ph.HE
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大气效应对皮埃尔俄歇天文台地面探测器观测到的空气簇射能量重建的影响

Impact of atmospheric effects on the energy reconstruction of air showers observed by the surface detectors of the Pierre Auger Observatory

The Pierre Auger Collaboration

摘要:

大气条件,如压力(P)、温度(T)或空气密度($ρ\propto P/T$),影响高能宇宙射线引发的扩展空气簇射的发展。我们研究了大气变化对重建空气簇射的影响,从皮埃尔俄歇天文台的表面探测器阵列的数据,分别考虑与探测器间距为1500米和750米的间距之一。我们观察到调制的事件发生率是由于空气密度和压力的变化对测量信号的影响,从中获得的能量估计。我们展示了如何的能量分配可以被纠正,以考虑到这样的大气影响。

英文摘要:

Atmospheric conditions, such as the pressure (P), temperature (T) or air density ($ρ\propto P/T$), affect the development of extended air showers initiated by energetic cosmic rays. We study the impact of the atmospheric variations on the reconstruction of air showers with data from the arrays of surface detectors of the Pierre Auger Observatory, considering separately the one with detector spacings of 1500 m and the one with 750 m spacing. We observe modulations in the event rates that are due to the influence of the air density and pressure variations on the measured signals, from which the energy estimators are obtained. We show how the energy assignment can be corrected to account for such atmospheric effects.

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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