Atmospheric extinction of U-B photometry
Atmospheric extinction of U-B photometry
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DOI：
10.1046/j.1365-8711.2001.04187.x
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发表时间：
2001-05
影响因子：
4.8
通讯作者：
A. Cousins;J. Caldwell
中科院分区：
文献类型：
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作者：
A. Cousins;J. Caldwell
布格线已被用来测量大气消光的U-B，和两种方法来校正U-B的大气进行了检查。我们发现，当气团范围足够小时，传统的光度换算可能足够精确（就每个气团的最大危险误差为0.04 mag而言），但当不满足这个条件时，我们建议在U-B消光的校正中使用颜色项。
Bouguer lines have been used to measure the atmospheric extinction ofU−B, and two approaches to correctingU−Bfor the atmosphere are examined. We find that the conventional photometric reductions may be sufficiently accurate when the range of airmass is small enough (in terms of a maximum hazarded error of 0.04 mag per airmass), but we recommend the use of a colour term in the correction forU−Bextinction when this condition is not satisfied.