高美古观测站大气消光系数测定的初步结果

发布时间：2018-12-12 20:19

【摘要】：大气消光系数的测定是天文观测台站一项很重要和基础的工作.介绍了利用新建的2.4 m望远镜在高美古观测站开展的消光系数测定等定标工作的初步结果.利用2009年4～5月对Landolt标准星场的2次测光观测,分别给出了UBVRI 5个波段的消光系数.此外,对该站点大气消光的成分情况进行了探讨.给出的结果与数年前高美古观测站选址时得到的大气消光系数基本一致,并与其它一些知名天文观测台站的消光数据进行了比较.
[Abstract]:The measurement of atmospheric extinction coefficient is an important and basic work for astronomical observation stations. The preliminary results of calibration work such as the determination of extinction coefficient carried out by the newly built 2.4m telescope at the Gomeigu Observatory are introduced in this paper. Based on two photometric observations of Landolt standard star field from April to May 2009, the extinction coefficients of the five bands of UBVRI are given respectively. In addition, the composition of atmospheric extinction at this site is discussed. The results obtained are basically consistent with the atmospheric extinction coefficient obtained from the site selection of the Gomego Observatory a few years ago, and are compared with the extinction data of some other well-known astronomical observation stations.
【作者单位】： 中国科学院国家天文台/云南天文台;中国科学院研究生院;
【基金】：国家自然科学基金项目(10533050)资助
【分类号】：P126
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本文编号：2375188