An Observational Study of the Physical Properties of Star-forming Molecular Cores
文献类型：期刊论文
| 作者 | Bo Li; Chunchuan Pei; Hongjun Ma
|
| 刊名 | Chinese Astronomy and Astrophysics
 |
| 出版日期 | 2007 |
| 卷号 | 31期号:4页码:372 |
| ISSN号 | 0275-1062 |
| 英文摘要 | We used the 13.7 m millimeter-wave telescope of the Qinghai Station of Purple Mountain Observatory at Delingha to carry out simultaneous mapping observations in the 12 CO( J = 1 ? 0), 13 CO( J = 1 ? 0) and CO 18 ( J = 1 ? 0) lines towards 11 isolated star-forming molecular cores selected from the sample of Spitzer's c2d program. For all three lines, these sources were all observed to the positions of half the peak intensity of the 13 CO( J = 1 ? 0) line. The volume density, local thermodynamic equilibrium mass M LTE and virial mass M VIR were derived for each of the molecular cores. The obtained ratio of M VIR to M LTE is 0.85 ± 0.40 for the 13 CO( J = 1 ? 0) cores and 0.77 ± 0.35 for the CO 18 ( J = 1 ? 0) cores. The density profiles of the cloud cores were also calculated. |
| 语种 | 英语 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/28671]  |
| 专题 | 中国科学院紫金山天文台 |
| 作者单位 | 中国科学院紫金山天文台 |
| 推荐引用方式 GB/T 7714 | Bo Li,Chunchuan Pei,Hongjun Ma. An Observational Study of the Physical Properties of Star-forming Molecular Cores[J]. Chinese Astronomy and Astrophysics,2007,31(4):372. |
| APA | Bo Li,Chunchuan Pei,&Hongjun Ma.(2007).An Observational Study of the Physical Properties of Star-forming Molecular Cores.Chinese Astronomy and Astrophysics,31(4),372. |
| MLA | Bo Li,et al."An Observational Study of the Physical Properties of Star-forming Molecular Cores".Chinese Astronomy and Astrophysics 31.4(2007):372. |
入库方式： OAI收割
来源：紫金山天文台
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