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Is the emerging massive cluster NGC 2244 a twin cluster?
Li, JZ
2005-05-20
发表期刊ASTROPHYSICAL JOURNAL
卷号625期号:1页码:242-248
摘要We present in this paper the first near-infrared study of the young open cluster NGC 2244, which is well known for its partially embedded nature in the Rosette Nebula. Based on the spatially complete Two Micron All Sky Survey, the young OB cluster indicates apparent substructures. It is surprisingly resolved into a compact core that matches well the congregation of massive OB stars in the optical, a satellite cluster at a distance of 6.6 pc west of the center of NGC 2244 and probably a major stellar aggregate resembling an arc in structure right below the core. This infrared study provides various new updates on the nature of the young open cluster, including its central position, physical scale, and stellar population. A disk fraction of ∼ 20.5% ± 2.8% is achieved for its members with masses above 0.8 M-⊙. NGC 2244 is thus a unique example for the study of embedded clusters.
关键词Hii Regions Infrared : Stars Open Clusters And Associations : Individual ( Ngc 2244) Stars : Formation Stars : Pre-main-sequence
收录类别SCI
语种英语
WOS记录号WOS:000229046600021
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文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8158
专题应用天文研究部
作者单位1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Armagh Observ, Armagh BT61 9DG, North Ireland
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Li, JZ. Is the emerging massive cluster NGC 2244 a twin cluster?[J]. ASTROPHYSICAL JOURNAL,2005,625(1):242-248.
APA Li, JZ.(2005).Is the emerging massive cluster NGC 2244 a twin cluster?.ASTROPHYSICAL JOURNAL,625(1),242-248.
MLA Li, JZ."Is the emerging massive cluster NGC 2244 a twin cluster?".ASTROPHYSICAL JOURNAL 625.1(2005):242-248.
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