论文标题
omegawhite的短期变量恒星VI调查。开放群集
The OmegaWhite Survey for Short Period Variable Stars VI. Open Clusters
论文作者
论文摘要
使用$ \ sim $ 3分钟的节奏和使用Omegawhite调查进行的2小时的持续时间，我们介绍了在20个开放群集的田地中搜索短期可变恒星的结果。我们确定了这些磁场中的92个变量恒星。使用一系列群集成员目录和GAIA EDR3数据，我们确定10个是群集成员，还有2个是可能的成员。根据它们在Gaia HRD及其光度测定周期的位置，我们发现其中大多数是$δ$ SCT星。我们获得了其中一些簇成员和田间恒星的低分辨率光谱。我们在其他开放簇中的$δ$ sct恒星的背景下讨论了群集变量恒星。
Using light curves with $\sim$3 min cadence and a duration of 2 hrs made using the OmegaWhite survey, we present the results of a search for short-period variable stars in the field of 20 open clusters. We identified 92 variable stars in these fields. Using a range of cluster member catalogues and Gaia EDR3 data, we have determined that 10 are cluster members and 2 more are probable members. Based on their position on the Gaia HRD and their photometric periods, we find that most of these are $δ$ Sct stars. We obtained low-resolution optical spectroscopy of some of these cluster members and field stars. We discuss the cluster variable stars in the context of $δ$ Sct stars in other open clusters.
