PMO OpenIR
An Observational Study of the Physical Properties of Star-forming Molecular Cores
Bo Li; Chunchuan Pei; Hongjun Ma
2007
Source PublicationChinese Astronomy and Astrophysics
ISSN0275-1062
Volume31Issue:4Pages:372
AbstractWe 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.
Language英语
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/28672
Collection中国科学院紫金山天文台
Affiliation中国科学院紫金山天文台
First Author Affilication中国科学院紫金山天文台
Recommended Citation
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.
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