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Variable stars in the globular cluster NGC 4590 (M68)

机译:球状星团NGC 4590(M68)中的变星

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摘要

We present results of time series photometry to search for variable stars in the field of metal-poor globular cluster NGC 4590 (M68). Periods have been revised for 40 known variables and no significant changes were found. A considerable change in Blazhko effect for V25 has been detected. Among nine newly discovered variable candidates, 5 stars are of RRc Bailey type variables while 4 stars are unclassified. The variable stars V10, V21, V50 and V51 are found to be cluster members based on the radial velocity data taken from literature.
机译:我们提出时间序列光度法的结果,以搜索贫金属球状星团NGC 4590(M68)领域中的可变恒星。修订了40个已知变量的期限,未发现重大变化。已发现V25的布拉兹科效应发生了很大变化。在九个新发现的候选变量中,有5颗属于RRc Bailey型变量,而4颗未归类。根据从文献中获得的径向速度数据,发现可变恒星V10,V21,V50和V51是聚类成员。

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