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题名: C2H, HC3N and HNC observations in OMC-2/3
作者: Liu, Qiang1, 2; Yang Ji(杨戟)1; Sun, Yan1; Xu Ye(徐烨)1
刊名: RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期: 2011-06-01
卷号: 11, 期号:6, 页码:671-678
关键词: ISM: abundances ; ISM: individual (Orion Molecular Clouds) ; ISM: molecules ; stars: formation
文章类型: Article
英文摘要: For the first time, the OMC-2/3 region was mapped in C2H (1-0), HC3N (10-9) and HNC (1-0) lines. In general, the emissions from all the three molecular species reveal an extended filamentary structure. The distribution of C2H cores almost follows that of the 1300 mu m condensations, which might suggest that C2H is a good tracer to study the core structure of molecular clouds. The core masses traced by HNC are rather flat, ranging from 18.8 to 49.5 M-circle dot, while also presenting a large span for those from C2H, ranging from 6.4 to 36.0 M-circle dot. The line widths of both HNC and C2H look very similar, and both are wider than that of HC3N. The line widths of the three lines are all wider than those from dark clouds, implying that the former is more active than the latter, and has larger turbulence caused by winds and UV radiation from the surrounding massive stars.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: ORION MOLECULAR CLOUD ; MASSIVE STAR-FORMATION ; DENSE CORES ; OUTFLOWS ; CYANOACETYLENE ; ABUNDANCES ; AMMONIA ; REGION ; CS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000291963900006
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15979
Appears in Collections:分子云与恒星形成研究团组_期刊论文

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作者单位: 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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