光变曲线自动抽取程序

An Automatic Light-curve Extraction Pipeline

对各类变星的观测研究是时域天文学的重要内容。中国科学院国家天文台兴隆观测站作为亚洲规模最大的光学天文观测基地,拥有一批米级口径望远镜,每年面向全球天文工作者开放申请,承担了大量变星的测光观测任务,但至今没有完全针对兴隆观测站中小口径望远镜的测光数据自动化处理软件。介绍了一种针对兴隆观测站望远镜观测数据的光变曲线自动抽取程序,实现了从原始观测数据到获得光变曲线的全过程。该程序具备模块化和可自定义等特性,通过简单配置也可适用于其他光学天文望远镜数据。还介绍了该程序的结构、特点和使用方法,并以食变星UY UMa的实测数据处理为例展示了处理结果,最后讨论了程序的局限性和未来发展的展望。

The observation and study of all kinds of variable stars are important parts of time domain astronomy.Xinglong Observatory,NAOC as the largest observatory in the Asia continent owns several meter-aperture astronomical telescopes,which are opened to scientists from all countries.These telescopes are observing a lot of variable stars,but a dedicated data reduction pipeline is lacking.This paper introduces an automatic pipeline,which can extract light-curve from raw observation data.This pipeline is highly modularized and customizable,and can be applied to data from different optical astronomical telescopes after minor customization.The structure,the feature,and the usage of this pipeline are discussed in this paper,together with a sample of eclipsing-binary UY UMa.In the end,the limit of this pipeline and its future improvements are listed.