The Old Moving Groups in the Field of Taurus
文献类型：期刊论文
| 作者 | Liu,Jiaming4; Fang,Min3; Tian,Hao1; Liu,Chao1,5; Yang,Chengqun2; Xue,XiangXiang4 |
| 刊名 | The Astrophysical Journal Supplement Series
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 254期号:1 |
| 关键词 | Pre-main sequence stars Young stellar objects Stellar accretion Accretion Stellar accretion disks Star clusters Stellar associations Star formation Star-forming regions |
| ISSN号 | 0067-0049 |
| DOI | 10.3847/1538-4365/abf4d1 |
| 英文摘要 | Abstract In this work, we present a systematic search for stellar groups in the Taurus field by applying the DBSCAN algorithm to the data from Gaia DR2. We find 22 groups, consisting of 8 young groups (Groups 1–8) at ages of 2–4 Myr and distances of ～130–170 pc, and 14 old groups (Groups 9–22) at ages of 8–49 Myr and distances of ～110–210 pc. We characterize the disk properties of group members and find 19 new disk-bearing stars, 8 of which are in the young groups with 11 others belonging to the comparatively old groups at the ages of 8–11 Myr. We characterize the accretion properties of the group members with Hα emission lines in their Large Sky Area Multi-Object Fibre Spectroscopic Telescope spectra, and discover one source in Group 10 at an age of 10 Myr which still shows accretion activity. We investigate the kinematic relations among the old groups, find that Group 9 is kinematically related to the known Taurus members, and exclude any kinematic relations between Groups 10–22 and the known Taurus members. |
| 语种 | 英语 |
| WOS记录号 | IOP:0067-0049-254-1-ABF4D1 |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/58659]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.Key Lab of Space Astronomy and Technology, National Astronomical Observatories, CAS, Beijing 100101, People’s Republic of China 2.Shanghai Astronomical Observatory, 80 Nandan Road, Shanghai 200030, People’s Republic Of China 3.Purple Mountain Observatory, Chinese Academy of Sciences, 10 Yuanhua Road, Nanjing 210023, People’s Republic of China; mfang@pmo.ac.cn 4.CAS Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, 100101, Beijing, People’s Republic of China 5.School of Astronomy and Space Science, University of Chinese Academy of Sciences, 101408, Beijing, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Liu,Jiaming,Fang,Min,Tian,Hao,et al. The Old Moving Groups in the Field of Taurus[J]. The Astrophysical Journal Supplement Series,2021,254(1). |
| APA | Liu,Jiaming,Fang,Min,Tian,Hao,Liu,Chao,Yang,Chengqun,&Xue,XiangXiang.(2021).The Old Moving Groups in the Field of Taurus.The Astrophysical Journal Supplement Series,254(1). |
| MLA | Liu,Jiaming,et al."The Old Moving Groups in the Field of Taurus".The Astrophysical Journal Supplement Series 254.1(2021). |
入库方式： OAI收割
来源：国家天文台
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