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arXiv 0706.2643astro-ph
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从Pierre Auger天文台的混合数据测量UHECR能谱

Measurement of the UHECR energy spectrum from hybrid data of the Pierre Auger Observatory

Lorenzo Perrone

摘要:

与表面探测器阵列的至少一个站同时收集的两年多的荧光探测器数据("混合数据“)用于测量大约10 $^{18}$ eV以上的宇宙射线的通量和能谱。混合测量向仅用表面探测器数据测量的光谱的较低能量延伸,并且提供与独立数据集的交叉检查。荧光检测器的孔径和它的生存时间,这是这个测量的主要方面的确定,详细说明。给出了相应系统不确定性的当前估计。

英文摘要:

More than two years of fluorescence detector data collected in coincidence with at least one station of the surface detector array (``hybrid data'') are used to measure the flux and energy spectrum of cosmic rays above about 10$^{18}$ eV. The hybrid measurement extends towards lower energies the spectrum measured with the surface detector data only, and provides a cross-check with an independent data set. The determination of the fluorescence detector aperture and of its live-time, which is the major aspect of this measurement, is illustrated in detail. Our current estimate of the corresponding systematic uncertainties are given.

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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