观察球状闪电的光学和光谱特性。
Observation of the optical and spectral characteristics of ball lightning.
机构信息
Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China.
出版信息
Phys Rev Lett. 2014 Jan 24;112(3):035001. doi: 10.1103/PhysRevLett.112.035001. Epub 2014 Jan 17.
Ball lightning (BL) has been observed with two slitless spectrographs at a distance of 0.9 km. The BL is generated by a cloud-to-ground lightning strike. It moves horizontally during the luminous duration. The evolution of size, color, and light intensity is reported in detail. The spectral analysis indicates that the radiation from soil elements is present for the entire lifetime of the BL.
球形闪电 (BL) 已通过两台无狭缝光谱仪在 0.9 公里的距离处进行观测。BL 由云对地雷击产生。在发光期间，它水平移动。详细报告了尺寸、颜色和光强度的演变。光谱分析表明，BL 的整个生命周期内都存在来自土壤元素的辐射。
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