A mapping survey of massive CO cores
文献类型：期刊论文
| 作者 | Guan, Xin2; Wu, Yuefang2; Ju, Binggang1 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2008-12-01 |
| 卷号 | 391期号:2页码:869-880 |
| 关键词 | stars: formation ISM: clouds ISM: molecules |
| ISSN号 | 0035-8711 |
| 英文摘要 | We mapped 21 star-forming regions with the (12)CO, (13)CO and C(18)O (1-0) lines using the 13.7-m telescope of Purple Mount Observatory. This mapping survey resolved 53 13CO cores, of which 22 are sourceless. We obtained the physical parameters of these cores. The relation between 13CO linewidth and core size and that between column density and core size were analysed. The cores 00211+6549-1 and 22566+5830 were found to have outflows. Systematic VLSR shifts were detected in nine regions: 00211+6549, 00232+6437, 05168+3634, 19199+1358, 20160+3911, 22566+5830, 23042+ 6000, S146 and S270. Signatures of infall and cloud collision were found in regions 18507+0121 and 19199+1358, respectively. We studied the mass function of these 13CO cores. The core masses range from 3.40 to 4.64 x 10(4)M(circle dot), and the core mass function is a power-law distribution of index -0.82 +/- 0.04. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | STAR-FORMING REGIONS ; WATER MASERS ; MOLECULAR CLOUDS ; PROTOSTELLAR OBJECTS ; AMMONIA CLUMPS ; DARK CLOUDS ; OUTFLOW ; EMISSION ; CATALOG ; ORION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000261265300032 |
| 公开日期 | 2011-12-30 |
| 源URL | [http://159.226.72.40/handle/332002/1979]  |
| 专题 | 紫金山天文台_南极天文中心 |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Delingha 817000, Qinghai, Peoples R China 2.Peking Univ, Dept Astron, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guan, Xin,Wu, Yuefang,Ju, Binggang. A mapping survey of massive CO cores[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2008,391(2):869-880. |
| APA | Guan, Xin,Wu, Yuefang,&Ju, Binggang.(2008).A mapping survey of massive CO cores.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,391(2),869-880. |
| MLA | Guan, Xin,et al."A mapping survey of massive CO cores".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 391.2(2008):869-880. |
入库方式： OAI收割
来源：紫金山天文台
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