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arXiv 1609.01513astro-ph.HEastro-ph.IM
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俄歇工程无线电阵列的结果和前景

Results and Perspectives of the Auger Engineering Radio Array

Christian Glaser

摘要:

俄歇工程射电阵列(AERA)是皮埃尔·俄歇宇宙射线天文台的延伸。它被用来探测能量超过$10^{17}~$ eV的大范围空气簇射在$30 - 80~$ MHz频段的无线电发射。经过三个阶段的部署,AERA现在由150多个不同间距的自主无线电台组成,覆盖面积约为$17~$ km $^2$。它与其他俄歇低能量探测器扩展位于同一地点,能够与各种其他测量技术相结合。无线电阵列允许不同的技术方案进行探索,以及交叉校准我们的测量与建立的基线探测器的俄歇天文台。我们报告最新的技术发展,并给出了与AERA获得的实验结果的概述。特别是,我们将介绍辐射能量的测量,即,通过与校准良好的俄歇表面探测器的测量结果进行比较,分析了空气簇射以无线电发射形式发射的能量的大小及其对宇宙射线能量的依赖性。此外,我们概述了这一结果的宇宙射线观测站的能量尺度的绝对校准的相关性。

英文摘要:

The Auger Engineering Radio Array (AERA) is an extension of the Pierre Auger Cosmic-Ray Observatory. It is used to detect radio emission from extensive air showers with energies beyond $10^{17}~$eV in the $30 - 80~$MHz frequency band. After three phases of deployment, AERA now consists of more than 150 autonomous radio stations with different spacings, covering an area of about $17~$km$^2$. It is located at the same site as other Auger low-energy detector extensions enabling combinations with various other measurement techniques. The radio array allows different technical schemes to be explored as well as cross-calibration of our measurements with the established baseline detectors of the Auger Observatory. We report on the most recent technological developments and give an overview of the experimental results obtained with AERA. In particular, we will present the measurement of the radiation energy, i.e., the amount of energy that is emitted by the air shower in the form of radio emission, and its dependence on the cosmic-ray energy by comparing with the measurement of the the well-calibrated Auger surface detector. Furthermore, we outline the relevance of this result for the absolute calibration of the energy scale of cosmic-ray observatories.

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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