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Radiation-driven implosion in the Cepheus B molecular cloud
Chen, Sheng1,2; Huang, Maohai1
2010-08-01
发表期刊RESEARCH IN ASTRONOMY AND ASTROPHYSICS
卷号10期号:8页码:777-784
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.
关键词Submillimeter Ism: Clouds Ism: Globules Stars: Formation
收录类别SCI
语种英语
WOS记录号WOS:000281136200007
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/7764
专题空间科学研究部
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
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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.
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