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New open cluster candidates discovered in the XSTPS-GAC survey
Guo, Jin-Cheng1,2,3; Zhang, Hua-Wei1,2; Zhang, Hui-Hua1,2; Liu, Xiao-Wei1,2,4; Yuan, Hai-Bo5; Huang, Yang1,2,4; Wang, Song3; Chen, Li6; Zhao, Hai-Bin7; Liu, Ji-Feng3; Chen, Bing-Qiu4; Xiang, Mao-Sheng3; Tian, Zhi-Jia1,2; Huo, Zhi-Ying3; Wang, Chun1,2
2018-03-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume18Issue:3Pages:14
Corresponding AuthorGuo, Jin-Cheng(jincheng.guo@pku.edu)
AbstractThe Xuyi Schmidt Telescope Photometric Survey of the Galactic Anti-center (XSTPS-GAC) is a photometric sky survey that covers nearly 6000 deg(2) towards the Galactic Anti-center (GAC) in the g, r, i bands. Half of its survey field is located on the Galactic Anti-center disk, which makes XSTPS-GAC highly suitable to search for new open clusters in the GAC region. In this paper, we report new open cluster candidates discovered in this survey, as well as properties of these open cluster candidates, such as age, distance and reddening, derived by isochrone fitting in the color-magnitude diagram (CMD). These open cluster candidates are stellar density peaks detected in the star density maps by applying the method from Koposov et al. Each candidate is inspected in terms of its true color image composed from three XSTPS-GAC band images. Then its CMD is checked, in order to identify whether the central region stars have a clear isochrone-like trend differing from background stars. The parameters derived from isochrone fitting for these candidates are mainly based on three band photometry of XSTPS-GAC. Moreover, when these new candidates are able to be seen clearly in 2MASS data, their parameters are also derived based on the 2MASS (J - H, J) CMD. There are a total of 320 known open clusters rediscovered and 24 new open cluster candidates discovered in this work. Furthermore, the parameters of these new candidates, as well as another 11 previously known open clusters, are properly determined for the first time.
Keywordopen clusters and associations: general Galaxy: structure methods: data analysis
DOI10.1088/1674-4527/18/3/32
WOS KeywordSKY SURVEY 2MASS ; EXTINCTION COEFFICIENTS ; STAR-CLUSTERS ; CATALOG ; CALIBRATION ; SYSTEMS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000428268500008
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22428
Collection中国科学院紫金山天文台
Corresponding AuthorGuo, Jin-Cheng
Affiliation1.Peking Univ, Dept Astron, Beijing 100871, Peoples R China
2.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
3.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China
4.Yunnan Univ, South Western Inst Astron Res, Kunming 650500, Yunnan, Peoples R China
5.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
6.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
7.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Guo, Jin-Cheng,Zhang, Hua-Wei,Zhang, Hui-Hua,et al. New open cluster candidates discovered in the XSTPS-GAC survey[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2018,18(3):14.
APA Guo, Jin-Cheng.,Zhang, Hua-Wei.,Zhang, Hui-Hua.,Liu, Xiao-Wei.,Yuan, Hai-Bo.,...&Wang, Chun.(2018).New open cluster candidates discovered in the XSTPS-GAC survey.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,18(3),14.
MLA Guo, Jin-Cheng,et al."New open cluster candidates discovered in the XSTPS-GAC survey".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 18.3(2018):14.
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