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题名: (CO)-C-13 mapping study for massive molecular cloud cores
作者: Wu, YF; Wang, JZ; Wu, JW; Yan, HR; Lei, CM; Sun, JJ; Wang, LM
刊名: SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY
出版日期: 2001-04-01
卷号: 44, 期号:4, 页码:536-544
关键词: interstellar matter ; molecular clouds ; interstellar dynamics ; star formation
文章类型: Article
英文摘要: Using the newly installed SIS receiving system on the 13.7 m telescope at Qinghai Station of PMO, United Radio Astronomy of CAS, CO isotope (CO)-C-13 J = 1-0 and (CO)-O-18 J = 1-0 lines were observed for three sources S241, S39 and ON3. Results show that the three sources have massive cores, of which the size is similar to 2-5 pc, masses are similar to 10(3)-10(4) M-circle dot. The widths of lines are also larger than those in low mass cores. And high velocity characteristics were observed for all the sources. The V-LSR distribution presents rotation of the core in ON3. And all the three cores contain deeply embedded forming massive stars. The young stellar objects in S241 and ON3 seem to be moving away from their birth sites.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Mathematics, Applied ; Mathematics
研究领域[WOS]: Mathematics
关键词[WOS]: STAR-FORMATION ; GALAXY ; OUTFLOWS ; REGIONS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000168510300015
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15790
Appears in Collections:南极天文中心_期刊论文

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作者单位: 1.Beijing Univ, Dept Astron, CAS, PKU,Joint Beijing Astrophys Ctr, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Qinghai Stn, Delingha 817000, Peoples R China
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