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INFALL AND OUTFLOW DETECTIONS IN A MASSIVE CORE JCMT 18354-0649S
Liu, Tie1; Wu, Yuefang1; Zhang, Qizhou2; Ren, Zhiyuan1; Guan, Xin1; Zhu, Ming3
2011-02-20
发表期刊ASTROPHYSICAL JOURNAL
卷号728期号:2
摘要We present a high-resolution study of a massive dense core JCMT 18354-0649S with the Submillimeter Array. The core is mapped with continuum emission at 1.3 mm and molecular lines including CH3OH (5(23)-4(13)) and HCN (3-2). The dust core detected in the compact configuration has a mass of 47M(circle dot) and a diameter of 2 '' (0.06 pc), which is further resolved into three condensations with a total mass of 42 M-circle dot under higher spatial resolution. The HCN (3-2) line exhibits an asymmetric profile consistent with infall signature. The infall rate is estimated to be 2.0 x 10(-3) M-circle dot yr(-1). The high-velocity HCN (3-2) line wings present an outflow with three lobes. Their total mass is 12 M-circle dot and the total momentum is 121 M-circle dot km s(-1). Analysis shows that the N-bearing molecules especially HCN can trace both inflow and outflow.
关键词Ism: Jets And Outflows Ism: Kinematics And Dynamics Ism: Molecules Stars: Formation Stars: Massive Stars: protoStars
DOI10.1088/0004-637X/728/2/91
收录类别SCI
语种英语
WOS记录号WOS:000286973600018
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文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/7852
专题射电天文研究部
作者单位1.Peking Univ, Dept Astron, Beijing 100871, Peoples R China
2.Harvard Smithsonian Ctr Astron, Cambridge, MA 02138 USA
3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
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Liu, Tie,Wu, Yuefang,Zhang, Qizhou,et al. INFALL AND OUTFLOW DETECTIONS IN A MASSIVE CORE JCMT 18354-0649S[J]. ASTROPHYSICAL JOURNAL,2011,728(2).
APA Liu, Tie,Wu, Yuefang,Zhang, Qizhou,Ren, Zhiyuan,Guan, Xin,&Zhu, Ming.(2011).INFALL AND OUTFLOW DETECTIONS IN A MASSIVE CORE JCMT 18354-0649S.ASTROPHYSICAL JOURNAL,728(2).
MLA Liu, Tie,et al."INFALL AND OUTFLOW DETECTIONS IN A MASSIVE CORE JCMT 18354-0649S".ASTROPHYSICAL JOURNAL 728.2(2011).
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