NAOC Open IR
Investigating variable stars in the open cluster NGC 1912 and its surrounding field
Li, Chun-Yan1,2; Esamdin, Ali1; Zhang, Yu1; Song, Fang-Fang1,2; Zeng, Xiang-Yun1,2; Chen, Li2,3; Niu, Hu-Biao1,4; Bai, Jian-Ying1,2; Liu, Jun-Hui1
2021-04-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume21Issue:3Pages:17
AbstractIn this work, we studied the variable stars in the open cluster NGC 1912 based on the photometric observations and Gaia DR2 data. More than 3600 CCD frames in B, V, R filters were reduced, and we obtained the light curves that span about 63 hours. By analyzing these light curves, we detected 24 variable stars, including 16 periodic variable stars, seven eclipsing binaries and one star whose type is unclear. Among these 24 variable stars, 11 are newly discovered, which are classified as six gamma Doradus stars, one delta Scuti star, three detached binaries and one contact binary. We also confirmed 13 previously known variable stars. Based on cluster members identified by Cantat-Gaudin et al. (2018), we inferred cluster memberships for these detected variable stars. Using Gaia DR2 data, we plotted a new color-magnitude diagram for NGC 1912, and showed the nature of variable cluster members in kinematical properties and heliocentric distance. Among the 24 variable stars, seven variables are probable cluster members, which show homogeneity in kinematic characters and space position with the established cluster members. Four of the seven variable cluster members are the previously discovered stars, consisting of two gamma Dor stars and two delta Sct stars. The remaining three variable cluster members, which are all gamma Dor stars, are firstly detected in this work. The main physical parameters of these variable cluster members estimated from the color-magnitude diagram are log(age/yr) = 8.75, [Fe/H] = -0.1, m - M = 10.03 mag, and E(B - V) = 0.307.
Keywordopen clusters and associations: NGC 1912 techniques: photometric stars: variables: general
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; program of Tianshan Youth ; program of Tianshan Youth ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; program of Tianshan Youth ; program of Tianshan Youth ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; program of Tianshan Youth ; program of Tianshan Youth ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; program of Tianshan Youth ; program of Tianshan Youth ; National Development and Reform Commission ; National Development and Reform Commission
DOI10.1088/1674-4527/21/3/068
WOS KeywordVISIBLE OPEN CLUSTERS ; DELTA-SCUTI ; PROPER MOTIONS ; CONVECTION ; PULSATION ; TELESCOPE ; POPULATION ; DISTANCES ; ALGORITHM ; CATALOG
Language英语
Funding ProjectNational Natural Science Foundation of China[11873081] ; National Natural Science Foundation of China[11661161016] ; program of Tianshan Youth[2017Q091] ; National Development and Reform Commission
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; program of Tianshan Youth ; program of Tianshan Youth ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; program of Tianshan Youth ; program of Tianshan Youth ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; program of Tianshan Youth ; program of Tianshan Youth ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; program of Tianshan Youth ; program of Tianshan Youth ; National Development and Reform Commission ; National Development and Reform Commission
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000657378800001
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/77153
Collection中国科学院国家天文台
Corresponding AuthorEsamdin, Ali
Affiliation1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
4.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
Recommended Citation
GB/T 7714
Li, Chun-Yan,Esamdin, Ali,Zhang, Yu,et al. Investigating variable stars in the open cluster NGC 1912 and its surrounding field[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2021,21(3):17.
APA Li, Chun-Yan.,Esamdin, Ali.,Zhang, Yu.,Song, Fang-Fang.,Zeng, Xiang-Yun.,...&Liu, Jun-Hui.(2021).Investigating variable stars in the open cluster NGC 1912 and its surrounding field.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,21(3),17.
MLA Li, Chun-Yan,et al."Investigating variable stars in the open cluster NGC 1912 and its surrounding field".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 21.3(2021):17.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, Chun-Yan]'s Articles
[Esamdin, Ali]'s Articles
[Zhang, Yu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Chun-Yan]'s Articles
[Esamdin, Ali]'s Articles
[Zhang, Yu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Chun-Yan]'s Articles
[Esamdin, Ali]'s Articles
[Zhang, Yu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.