天文台址紫外波段大气透过率获取方法  

Acquisition methods for ultraviolet atmospheric transmittance at astronomical sites

作　　者：曾洋 卢利根[1,2] 张保洲 ZENG Yang;LU LiGen;ZHANG BaoZhou(Department of Astronomy,Beijing Normal University,Beijing 100875,China;Beijing Key Laboratory for Applied Optics,Beijing Normal University,Beijing 100875,China)

机构地区：[1]北京师范大学天文系,北京100875 [2]北京师范大学应用光学北京市重点实验室,北京100875

出　　处：《中国科学：物理学、力学、天文学》2022年第8期128-139,共12页Scientia Sinica Physica,Mechanica & Astronomica

基　　金：国家自然科学基金(编号:11803003,U2031209)资助项目。

摘　　要：大气紫外透过率是反应紫外波段大气光学特性的关键参数,对于开展地面紫外天文观测,尤其是相应台站的选址、望远镜和终端设备建设具有重要的指导意义.文中详细介绍了目前获取紫外波段大气透过率的方法和原理,并对软件模拟和仪器测量两种主要方法进行了比较和分析.同时提出将月球作为夜间大气透过率测量的观测对象,分析其可行性和应注意的问题.Ultraviolet atmospheric transmittance is a key parameter inreflecting theoptical characteristics of the atmosphere in the ultraviolet region.It is practically significant in providing the basis for ground-based ultraviolet observation,especially in site surveys,telescope construction,and terminal equipment development.In this paper,common methods for obtaining ultraviolet atmospheric transmittance are introduced,including computational simulation and instrumental measurement,and their properties are compared and analyzed.Moreover,a new method,using the moon as a measuring object is proposed to acquire the ultraviolet atmospheric transmittance at night,and some suggestions are put forward.

关 键 词：大气透过率 紫外波段 软件模拟 太阳辐射计 恒星辐射计 

分 类 号：P112[天文地球—天文学]