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arXiv 0806.1161astro-ph
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地球同步辐射对cosmic ray簇射能量和最大深度的依赖性

Dependence of geosynchrotron radio emission on the energy and depth of maximum of cosmic ray showers

T. Huege, R. Ulrich, R. Engel

摘要:

基于CORSIKA和REAS 2模拟,我们研究了来自广泛的空气簇射的地球同步辐射对初级宇宙线能量和簇射极大值深度的依赖性。据发现,在一个特征的横向距离,带通滤波的无线电信号的幅度是直接成比例的能量沉积在大气中的电磁级联,由于小于3%的波动的RMS的不确定性。此外,这个无线电振幅的比率,在一个更大的横向距离是直接相关的大气层深度的簇射最大值,与RMS的不确定性~15-20克厘米-2。通过测量这些量,来自宇宙射线空气簇射的地球同步辐射可以用来推断初级粒子的能量和空气簇射最大值的深度。

英文摘要:

Based on CORSIKA and REAS2 simulations, we investigate the dependence of geosynchrotron radio emission from extensive air showers on the energy of the primary cosmic ray and the depth of the shower maximum. It is found that at a characteristic lateral distance, the amplitude of the bandpass-filtered radio signal is directly proportional to the energy deposited in the atmosphere by the electromagnetic cascade, with an RMS uncertainty due to shower-to-shower fluctuations of less than 3%. In addition, the ratio of this radio amplitude and that at a larger lateral distance is directly related to the atmospheric depth of the shower maximum, with an RMS uncertainty of ~15-20 g cm-2. By measuring these quantities, geosynchrotron radio emission from cosmic ray air showers can be used to infer the energy of the primary particle and the depth of the air shower maximum on a shower-to-shower basis.

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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