NAOC Open IR  > 空间科学研究部
Radiation-driven implosion in the Cepheus B molecular cloud
Chen, Sheng1,2; Huang, Maohai1
AbstractWe 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.
KeywordSubmillimeter Ism: Clouds Ism: Globules Stars: Formation
Indexed BySCI
WOS IDWOS:000281136200007
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
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.
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