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The first CCD photometric study of the open cluster NGC 744
Wang, Kun1; Deng, Li-Cai1,2; Luo, Zhi-Quan1; Yan, Zheng-Zhou1; Liu, Qi-Li3; Sun, Jin-Jiang3; Zhou, Qiang3
2018-10-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume18Issue:11Pages:8
Abstract

We present the first CCD photometric observations of open cluster NGC 744, as part of the 50BiN Open Cluster Survey. The color-magnitude diagrams of this cluster were derived from absolute BV RI photometry on a good photometric night. A brief isochrone fitting gives a distance modulus of (m- M)(v) = 11.58 +/- 0.2 and a reddening of E(B-V) = 0.35 +/- 0.05 with an age of log t = 8.30 +/- 0.05. By carefully examining the RV time-series data, we discovered four new variable stars in a 20' x 20' field around the cluster. We classified them as three eclipsing binary stars and one delta Scuti pulsating star, mainly based on the light-curve shape, the detected periods and the positions on the color-magnitude diagrams.

Keywordopen clusters and associations: individual (NGC 744) stars: variables: general
DOI10.1088/1674-4527/18/11/139
WOS KeywordDELTA-SCUTI ; STARS ; CATALOG ; PARAMETERS ; EVOLUTION ; STELLAR
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000448829000009
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/20991
Collection中国科学院紫金山天文台
Corresponding AuthorWang, Kun
Affiliation1.China West Normal Univ, Dept Astron, Nanchong 637009, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100101, Peoples R China
3.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Wang, Kun,Deng, Li-Cai,Luo, Zhi-Quan,et al. The first CCD photometric study of the open cluster NGC 744[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2018,18(11):8.
APA Wang, Kun.,Deng, Li-Cai.,Luo, Zhi-Quan.,Yan, Zheng-Zhou.,Liu, Qi-Li.,...&Zhou, Qiang.(2018).The first CCD photometric study of the open cluster NGC 744.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,18(11),8.
MLA Wang, Kun,et al."The first CCD photometric study of the open cluster NGC 744".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 18.11(2018):8.
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