| 切伦科夫线辐射的基本公式 |
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| 引用本文： | 刘当波,靳光学.切伦科夫线辐射的基本公式[J].天文学报,1999,40(4):382-393. |
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| 作者姓名： | 刘当波 靳光学 |
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| 作者单位： | 上海交通大学应用物理系空间与天体物理研究所!上海200030 |
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| 摘 要： | 在８０ 年代初，尤峻汉和程富华从理论上证实，当相对论电子在稠密气体中运动时，切伦科夫效应将产生宽的、轮廓明显不对称的原子或分子发射线．此后这一新的谱线发射机制被一系列实验所确证．尤峻汉等人又进一步给出了有关切伦科夫辐射的系列解析公式，但其有关谱轮廓和红移的结论只适用于极稠密的气体．由于这一线辐射机制在天体物理中的潜在重要性，在他们工作的基础上，进一步简化、推广、改进了原有的公式体系，并以天体物理学家熟悉的形式做出了更便于实际应用的表述
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| 关 键 词： | 辐射机制 切伦科夫线辐射 谱轮廓 红移 |
THE BASIC FORMULAE OF CERENKOV LINE RADIATION |
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| LIU Dang,Bo,JIN Guang,Xue,SHI Jian,Rong,YOU Jun,Han.THE BASIC FORMULAE OF CERENKOV LINE RADIATION[J].Acta Astronomica Sinica,1999,40(4):382-393. |
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| Authors: | LIU Dang Bo JIN Guang Xue SHI Jian Rong YOU Jun Han |
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| Abstract: | Early in 1980, You and Cheng argued that, when relativistic electrons move through a dense gas, the Cerenkov effect will produce peculiar emission lines. They presented a series of formulae to describe this new line radiation. Then an elegant experimental confirmation has been performed by Xu et al. Owing to the potential importance of this radiation mechanism in astrophysics, the authors of this paper try to examine and improve the previous formula system in a form, which is more convenient for astrophysical applications. In particular, the extended formulae may be applied to other species of atoms and/or ions rather than hydrogen as in previous papers, and used in calculations for the nonuniform plane parallel slabs of the emissive gas. |
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| Keywords: | radiation mechanism Cerenkov radiation spectral line profile red shift |
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