首页|Variable Stars in the 50BiN Open Cluster Survey.Ⅲ.NGC 884

Variable Stars in the 50BiN Open Cluster Survey.Ⅲ.NGC 884

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Open clusters are the basic building blocks that serve as a laboratory for the study of young stellar populations in the Milky Way.Variable stars in open clusters provide a unique way to accurately probe the intemal structure,temporal and dynamical evolutionary stages of individual stars and the host cluster.The most powerful tool for such studies is time-domain photometric observations.This paper follows the route of our previous work,concentrating on a photometric search for variable stars in NGC 884.The target cluster is the companion of NGC 869,forming the well-known double cluster system that is gravitationally bound.From the observation run in 2016 November,a total of 9247 B-band CCD images and 8218 V-band CCD images were obtained.We detected a total of 15 stars with variability in visual brightness,including five Be stars,three eclipsing binaries,and seven of unknown types.Two new variable stars were discovered in this work.We also compared the variable star content of NGC 884 with its companion NGC 869.

stars:variables:general(Galaxy:)open clusters and associations:individual(…,…)(stars:)binaries:general

Lin-Hong Wang、Qian-Heng Nie、Kun Wang、Xiao-Dian Chen、Chun-Guang Zhang、Li-Cai Deng、Xiao-Bin Zhang、Tian-Lu Chen

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Department of Physics,College of Science,Tibet University,Lhasa 850000,China

Key Laboratory of Cosmic Rays,Tibet University,Ministry of Education,Lhasa 850000,China

Key Laboratory of Optical Astronomy,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China

School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 100049,China

Middlesex School,Concord,Massachusetts,United States of America

School of Physics and Astronomy,China West Normal University,Nanchong 637002,China

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国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金中国科学院青年创新促进会项目

120030221237303512233009121730472022055

2024

10.1088/1674-4527/ad12a7

天文和天体物理学研究
中国科学院国家天文台

天文和天体物理学研究

CSTPCD
影响因子：0.406
ISSN：1674-4527
年,卷(期)：2024.24(2)
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