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arXiv 1107.0665astro-ph.HE
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由Cosmic-Ray引起的空气簇射产生的相干切伦科夫辐射

Coherent Cherenkov Radiation from Cosmic-Ray-Induced Air Showers

K. D. de Vries, A. M. van den Berg, O. Scholten, K. Werner

摘要:

高能宇宙射线进入地球大气层后,会产生一个等离子云,其移动速度几乎达到光速。地球的磁场在这片云中感应出一个电流,这是发射相干电磁辐射的原因。我们建议寻找一种新的效果:由于空气的折射率,这种辐射在切伦科夫锥中被准直。为了表示与通常的切伦科夫辐射(即来自快速移动的电荷的发射)的区别,我们称之为磁感应切伦科夫辐射。我们指出其签名和可能的实验验证。

英文摘要:

Very energetic cosmic rays entering the atmosphere of the Earth will create a plasma cloud moving with almost the speed of light. The magnetic field of the Earth induces an electric current in this cloud which is responsible for the emission of coherent electromagnetic radiation. We propose to search for a new effect: due to the index of refraction of air this radiation is collimated in a Cherenkov cone. To express the difference from usual Cherenkov radiation, i.e. the emission from a fast moving electric charge, we call this magnetically-induced Cherenkov radiation. We indicate its signature and possible experimental verification.

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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