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首页> 外文期刊>The Astrophysical journal >WIYN Open Cluster Study. XX. Photometric Monitoring of the Galactic Cluster NGC 6939
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WIYN Open Cluster Study. XX. Photometric Monitoring of the Galactic Cluster NGC 6939

机译:WIYN开放聚类研究。 XX。银河星系NGC 6939的光度监控

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A photometric monitoring program in the field of the Galactic cluster NGC 6939 was conducted using the 0.91 m WIYN and the US Naval Observatory Flagstaff Station 1.3 m and 1 m telescopes, with the primary goal being to search for cataclysmic variables (CVs) in the cluster. Although no CVs were found during the 5 months of monitoring, a number of short-period variables were discovered in the field of the cluster. A large portion of them are of the W Ursae Majoris type, whereas WOCS V7 is an RR Lyrae star. Although the survey was somewhat compromised by the bright stars around the center of the cluster, it is intriguing that NGC 6939 appears to be deficient in faint variables.
机译:使用0.91 m WIYN和美国海军天文台弗拉格斯塔夫站1.3 m和1 m望远镜进行了银河星团NGC 6939领域的光度监测程序,主要目的是搜索星团中的灾变变量(CV) 。尽管在监视的5个月内未发现CV,但在集群领域中发现了许多短期变量。其中很大一部分是W Ursae Majoris类型,而WOCS V7是RR天琴星。尽管该调查受到星团中心周围明亮恒星的影响,但令人惊讶的是NGC 6939似乎缺乏微弱的变量。

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