A Catalog of Newly Identified Star Clusters in Gaia DR2
文献类型：期刊论文
| 作者 | Liu, Lei1; Pang, Xiaoying2,3,4 |
| 刊名 | ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
 |
| 出版日期 | 2019-12-01 |
| 卷号 | 245期号:2页码:13 |
| ISSN号 | 0067-0049 |
| 关键词 | catalogs galaxies: star clusters: general methods: data analysis open clusters and associations: general |
| DOI | 10.3847/1538-4365/ab530a |
| 英文摘要 | We present the Star cluster Hunting Pipeline (SHiP) that can identify star clusters in Gaia second data release (DR2) data and establish a star cluster catalog for the Galactic disk. A friend-of-friend-based cluster finder method is used to identify star clusters using five-dimensional stellar parameters, l, b, omega, mu(alpha) cos delta, and mu(delta). Our new catalog contains 2443 star cluster candidates identified from disk stars located within vertical bar b vertical bar = 25. and with G < 18 mag. An automatic isochrone fitting scheme is applied to all cluster candidates. With a combination of parameters obtained from isochrone fitting, we classify cluster candidates into three classes (Class 1, 2, and 3). Class 1 clusters are the most probable star cluster candidates with the most stringent criteria. Most of these clusters are nearby (within 4 kpc). Our catalog is crossmatched with three Galactic star cluster catalogs, Kharchenko et al., Gaudin et al., and Bica et al. The proper motion and parallax of matched star clusters are in good agreement with these earlier catalogs. We discover 76 new star cluster candidates that are not listed in these three catalogs. The majority of these are clusters older than log(age/yr) = 8.0 and are located in the inner disk with vertical bar b vertical bar < 5 degrees. The recent discovery of new star clusters suggests that current Galactic star cluster catalogs are still incomplete. Among the Class 1 cluster candidates, we find 56 candidates for star cluster groups. The pipeline, the catalog, and the member list containing all candidates star clusters and star cluster groups have been made publicly available. |
| 资助项目 | National Natural Science Foundation of China[11903067] ; National Natural Science Foundation of China[11673032] ; National Natural Science Foundation of China[11503015] ; National Natural Science Foundation of China[U1938114] ; Research Development Fund of Xi'an Jiaotong Liverpool University[RDF-18-02-32] ; German Research Foundation (DFG)[Sonderforschungsbereich SFB 881] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000518771900009 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Development Fund of Xi'an Jiaotong Liverpool University ; Research Development Fund of Xi'an Jiaotong Liverpool University ; German Research Foundation (DFG) ; German Research Foundation (DFG) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Development Fund of Xi'an Jiaotong Liverpool University ; Research Development Fund of Xi'an Jiaotong Liverpool University ; German Research Foundation (DFG) ; German Research Foundation (DFG) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Development Fund of Xi'an Jiaotong Liverpool University ; Research Development Fund of Xi'an Jiaotong Liverpool University ; German Research Foundation (DFG) ; German Research Foundation (DFG) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Development Fund of Xi'an Jiaotong Liverpool University ; Research Development Fund of Xi'an Jiaotong Liverpool University ; German Research Foundation (DFG) ; German Research Foundation (DFG) |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/56329]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Pang, Xiaoying |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 2.Shanghai Normal Univ, Shanghai Key Lab Astrophys, 100 Guilin Rd, Shanghai 200234, Peoples R China 3.Shanghai Inst Technol, 100 Haiquan Rd, Shanghai 201418, Peoples R China 4.Xian Jiaotong Liverpool Univ, Dushu Lake Sci & Educ Innovat Dist, 111 Renai Rd, Suzhou 215123, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Lei,Pang, Xiaoying. A Catalog of Newly Identified Star Clusters in Gaia DR2[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2019,245(2):13. |
| APA | Liu, Lei,&Pang, Xiaoying.(2019).A Catalog of Newly Identified Star Clusters in Gaia DR2.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,245(2),13. |
| MLA | Liu, Lei,et al."A Catalog of Newly Identified Star Clusters in Gaia DR2".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 245.2(2019):13. |
入库方式： OAI收割
来源：国家天文台
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