The effects of unresolved binary stars on the determination of the stellar mass function
The effects of unresolved binary stars on the determination of the stellar mass function
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DOI：
10.1093/mnras/251.2.293
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发表时间：
1991-07
影响因子：
4.8
通讯作者：
P. Kroupa;C. Tout;G. Gilmore
中科院分区：
文献类型：
--
作者：
P. Kroupa;C. Tout;G. Gilmore
未解析的双星对给定质量函数产生的恒星光度函数的影响被量化。正是如此，之前的研究大大低估了低质量恒星的数量。如果假设双星系统的两个组成质量都是独立于相同的质量函数选择的，则未解析的双星系统可以解释从摄影样本推导出来的这些光度函数的形状之间的差异，以及从具有三角视差的附近恒星推导出来的光度函数形状之间的差异。如果所有恒星都是具有两个氢燃烧成分的双星系统，则会获得最佳结果
The effect of unresolved binary stars on the stellar luminosity function that results from a given mass function are quantified. It is such that previous studies have significantly underestimated the numbers of low-mass stars. If it is assumed that both component masses of a binary system are chosen independently from the same mass function, unresolved binary systems can account for the difference between the shapes of those luminosity functions, deduced from photographic samples and that deduced from nearby stars with trigonometric parallaxes. The best results are obtained if all stars are binary systems with two hydrogen-burning components