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C_2H,HC_3N and HNC observations in OMC-2/3
Qiang Liu ; Ji Yang ; Yan Sun ; Ye Xu
Source PublicationResearch in Astronomy and Astrophysics
AbstractFor 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 &10m 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⊙,while also presenting a large span for those from C2H,ranging from 6.4 to 36.0 M⊙.The line widths of both HNC and C2H look very similar,and both are wider than that of HC_3N.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.
KeywordIsm Abundances - Ism Individual (Orion Molecular Clouds)- Ism Molecules - Stars Formation
Subject AreaAstronomy & Astrophysics
Document Type期刊论文
Recommended Citation
GB/T 7714
Qiang Liu,Ji Yang,Yan Sun,et al. C_2H,HC_3N and HNC observations in OMC-2/3[J]. Research in Astronomy and Astrophysics,2011,11(6):671-678.
APA Qiang Liu,Ji Yang,Yan Sun,&Ye Xu.(2011).C_2H,HC_3N and HNC observations in OMC-2/3.Research in Astronomy and Astrophysics,11(6),671-678.
MLA Qiang Liu,et al."C_2H,HC_3N and HNC observations in OMC-2/3".Research in Astronomy and Astrophysics 11.6(2011):671-678.
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