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arXiv 0910.4866astro-ph.HE
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用LOPES测量大范围空气簇射中无线电信号的横向分布

Lateral Distribution of the Radio Signal in Extensive Air Showers Measured with LOPES

LOPES Collaboration, W. D. Apel, J. C. Arteaga, T. Asch, A. F. Badea, L. Baehren, K. Bekk, M. Bertaina, P. L. Biermann, J. Bluemer, H. Bozdog, I. M. Brancus, M.… 展开作者

LOPES Collaboration, W. D. Apel, J. C. Arteaga, T. Asch, A. F. Badea, L. Baehren, K. Bekk, M. Bertaina, P. L. Biermann, J. Bluemer, H. Bozdog, I. M. Brancus, M. Brueggemann, P. Buchholz, S. Buitink, E. Cantoni, A. Chiavassa, F. Cossavella, K. Daumiller, V. de Souza, F. Di Pierro, P. Doll, R. Engel, H. Falcke, M. Finger, D. Fuhrmann, H. Gemmeke, P. L. Ghia, R. Glasstetter, C. Grupen, A. Haungs, D. Heck, J. R. Hoerandel, A. Horneffer, T. Huege, P. G. Isar, K. H. Kampert, D. Kang, D. Kickelbick, O. Kroemer, J. Kuijpers, S. Lafebre, P. Luczak, M. Ludwig, H. J. Mathes, H. J. Mayer, M. Melissas, B. Mitrica, C. Morello, G. Navarra, S. Nehls, A. Nigl, J. Oehlschlaeger, S. Over, N. Palmieri, M. Petcu, T. Pierog, J. Rautenberg, H. Rebel, M. Roth, A. Saftoiu, H. Schieler, A. Schmidt, F. Schroeder, O. Sima, K. Singh, G. Toma, G. C. Trinchero, H. Ulrich, A. Weindl, J. Wochele, M. Wommer, J. Zabierowski, J. A. Zensus

摘要:

LOPES天线阵安装在德国卡尔斯鲁厄的KASCADE-Grande广泛空气簇射实验的位置,旨在测量和研究广泛空气簇射的无线电脉冲。一致的测量使我们能够重建电场强度在观察水平的一般EAS参数的依赖。本文详细研究了空气簇射中无线电信号的横向分布。研究发现,单个EAS中电场强度的横向分布可以用指数函数来描述。对于约20%的事件的平坦朝向淋浴轴观察到,优先为淋浴与大倾角。描述横向剖面坡度的估计尺度参数R 0在100至200米之间。没有证据表明R 0与方位角、地磁角或初级能量等簇射参数有直接的相关性,这表明在簇射发展过程中,横向剖面是无线电发射的一种内在性质,这使得无线电探测技术适合于大规模应用。

英文摘要:

The antenna array LOPES is set up at the location of the KASCADE-Grande extensive air shower experiment in Karlsruhe, Germany and aims to measure and investigate radio pulses from Extensive Air Showers. The coincident measurements allow us to reconstruct the electric field strength at observation level in dependence of general EAS parameters. In the present work, the lateral distribution of the radio signal in air showers is studied in detail. It is found that the lateral distributions of the electric field strengths in individual EAS can be described by an exponential function. For about 20% of the events a flattening towards the shower axis is observed, preferentially for showers with large inclination angle. The estimated scale parameters R0 describing the slope of the lateral profiles range between 100 and 200 m. No evidence for a direct correlation of R0 with shower parameters like azimuth angle, geomagnetic angle, or primary energy can be found. This indicates that the lateral profile is an intrinsic property of the radio emission during the shower development which makes the radio detection technique suitable for large scale applications.

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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