Radiation-driven implosion in the Cepheus B molecular cloud
文献类型：期刊论文
| 作者 | Chen, Sheng1,2; Huang, Maohai1
|
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2010-08-01 |
| 卷号 | 10期号:8页码:777-784 |
| 关键词 | submillimeter ISM: clouds ISM: globules stars: formation |
| 英文摘要 | We analyze large scale mapping observations of the molecular lines in the (12)CO(J = 2 - 1), (12)CO (J = 3 - 2), (13)CO (J = 2 - 1), and (13)CO (J = 3 - 2) transition emissions toward the Cepheus B molecular cloud with the KOSMA 3m-telescope. The integrated intensity map of the (12)CO (J = 2 1) transition has shown a structure with a compact core and a compact ridge extended to the north-west of the core. The cloud is surrounded by an optically bright rim, where the radiation-driven implosion (RDI) may greatly change the gas properties. The intensities of the CO (J = 3 - 2) transition are higher than those of the CO (J = 2 - 1) transition along the rim area. We find characteristic RDI structure in position-velocity diagrams. Non-LTE large velocity gradient (LVG) model analysis shows that the density and temperature at the edge are higher than that in the center. Our results provide evidences that an RDI is taking place in the Cepheus B molecular cloud. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000281136200007 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7764]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Sheng,Huang, Maohai. Radiation-driven implosion in the Cepheus B molecular cloud[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2010,10(8):777-784. |
| APA | Chen, Sheng,&Huang, Maohai.(2010).Radiation-driven implosion in the Cepheus B molecular cloud.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,10(8),777-784. |
| MLA | Chen, Sheng,et al."Radiation-driven implosion in the Cepheus B molecular cloud".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 10.8(2010):777-784. |
入库方式： OAI收割
来源：国家天文台
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