A LUMINOSITY FUNCTION FOR STAR CLUSTERS IN THE LARGE MAGELLANIC CLOUD.
A LUMINOSITY FUNCTION FOR STAR CLUSTERS IN THE LARGE MAGELLANIC CLOUD.
复制标题
大麦哲伦云中星团的光度函数。
DOI：
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发表时间：
1985
期刊：
影响因子：
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通讯作者：
S. M. Fall
中科院分区：
文献类型：
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作者：
R. Elson;S. M. Fall
通过对大麦哲伦星云两个大区域内所有星团的积分星等的目测，确定了大麦哲伦星云中亮度大于MB = -4.5的星星团的光度函数。微分光度函数向微弱的星等单调上升。除了明亮星团的丰度较高外，它在性质上与银河系中疏散星团的光度函数相似。它没有银河系和M31球状星团系统的单峰形状。结果表明，大麦哲伦星系团系统的总光度主要由最亮的成员组成，而较暗的成员对总光度的贡献最大。
A luminosity function for star clusters brighter than MB = -4.5 in the LMC is determined from eye estimates of the integrated magnitudes of all clusters in two large regions of the LMC. The differential luminosity function rises monotonically toward faint magnitudes. Except for a higher abundance of bright clusters, it is qualitatively similar to the luminosity function for the open clusters in the Galaxy. It does not have the single-peaked shape that characterizes the globular-cluster systems of the Galaxy and M 31. It is found that the total luminosity of the LMC cluster system is dominated by the brightest members while the fainter clusters contribute most to the total number.