Cosmic Rays at the Highest Energies: First Data from the Pierre Auger Observatory
Cosmic Rays at the Highest Energies: First Data from the Pierre Auger Observatory
复制标题
最高能量的宇宙射线：皮埃尔·俄歇天文台的第一批数据
DOI：
10.1142/s021830130700654x
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发表时间：
2006
影响因子：
2.1
通讯作者：
K. Kampert
中科院分区：
文献类型：
--
作者：
K. Kampert
目前正在阿根廷马拉格建造的南皮埃尔·奥格天文台已接近完工。该仪器被设计用于测量能量范围在10-10 eV及以上的广泛的空气阵雨。它结合了两种互补的观测技术：对地面粒子的探测和对地面上方大气中产生的相关荧光的同步观测。这是通过使用一个由1600个水切伦科夫探测器组成的阵列来实现的，这些探测器分布在3000公里的范围内，并操作24个广角施密特望远镜，这些望远镜位于地面阵列边界的四个地点。天文台将在今年年底达到其全部规模，但数据已经例行记录，并已开始提供相关的科学结果。本讲座将重点介绍探测器的特性，并介绍超高能宇宙射线的到达方向、能谱和光子分数上限的初步结果。
The southern Pierre Auger Observatory, presently under construction in Malargue, Argentina, is nearing completion. The instrument is designed to measure extensive air-showers with energies ranging from 10-10 eV and beyond. It combines two complementary observation techniques: the detection of particles at ground and the coincident observation of associated fluorescence light generated in the atmosphere above the ground. This is being realized by employing an array of 1600 water Cherenkov detectors, distributed over an area of 3000 km, and operating 24 wide-angle Schmidt telescopes, positioned at four sites at the border of the ground array. The Observatory will reach its full size only at the end of this year but data are routinely recorded already and have started to provide relevant science results. This talk will focus on the detector characterizations and presents first results on the arrival direction of extremely-high energy cosmic rays, their energy spectrum, and on the upper limit of the photon fraction.