OB Associations, Open Clusters, and the Luminosity Calibration of the Nearer Stars

Anthony G. A. Brown
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Abstract

In the context of the luminosity calibration of the nearer stars I discuss the Hipparcos results on distances to nearby OB associations and open clusters. The shortcomings and assumptions in the analyses used to derive these results are pointed out and for the open clusters a comparison is made with results obtained from main sequence fitting. I conclude that given the considerable uncertainties in the latter technique there is no convincing evidence that the Hipparcos based distances to open clusters beyond the Hyades should not be trusted.
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OB关联、疏散星团和近恒星的光度校准
在距离较近恒星的光度校准的背景下,我讨论了hiparcos结果与附近OB协会和疏散星团的距离。指出了导出这些结果的分析方法中的不足和假设,并对疏散簇与主序列拟合的结果进行了比较。我的结论是,考虑到后一种技术的相当大的不确定性,没有令人信服的证据表明依巴谷基于毕宿座以外疏散星团的距离不应该是可信的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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