| NGC 1333/IRA6-9 区域中的致密分子云核 |
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| 引用本文： | 孙锦,沈家健,张燕平,孙金江.NGC 1333/IRA6-9 区域中的致密分子云核[J].中国天文和天体物理学报,2000,20(3). |
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| 作者姓名： | 孙锦 沈家健 张燕平 孙金江 |
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| 作者单位： | 北京师范大学天文系!北京100875，中国科学院-北京大学联合北京天体物理中心，北京，100871，北京师范大学天文系!北京100875，北京师范大学天文系!北京100875，中国科学院紫金山天文台青海观测站!德令哈817000 |
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| 基金项目： | 国家自然科学基金，中国科学院射电天文联合实验室资助 |
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| 摘 要： | 利用紫金山天文台青海站的13．7m毫米波望远镜，对NGC1333／IRAS6－9附近的一个10．3'X10'和6．8'X8'的恒星形成区，进行了13CO（1－0）和C18O（1－0）的成图观测，发现了多个新的分子云核和沿SSV12－IRASS方向的13CO（1－O）双极外向流．本文给出了每个云核的观测特性和物理参数．分析了这一区域的云核分布和速度场结构．详细讨论了该区域的云核分布、双极外向流和群集的年轻天体、红外源以及HH天体的关系．
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| 关 键 词： | 星际分子 分子云 外向流 恒星形成 |
Compact Cores of Molecular Clouds in NGC 1333/IRAS6-9 |
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| SUN Jin,SHEN Jia-jian,ZHANG Yan-ping,SUN Jin-jiang.Compact Cores of Molecular Clouds in NGC 1333/IRAS6-9[J].Chinese Journal of Astronomy and Astrophysics,2000,20(3). |
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| Authors: | SUN Jin SHEN Jia-jian ZHANG Yan-ping SUN Jin-jiang |
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| Abstract: | The 13CO (1 - O) and C18O (1 - O) emissions in the NGC 1333/IRAS6-9 star forming region were mapped with the 13.7m millimeter wave telescope of Purple Mountain Observatory. The areas covered are 10.3' x 10' for 13CO (1 - O) and 6.8' x 8' for C18O (1 - O) ,respectively. Several new compact molecular cores were discovered and a bipolar outflow of 13CO (1- O) was identified along the SSV12-IRAS8 direction. We present the observed properties and derived the physical parameters for all the 13CO (1 - 0) and C180 (1 - 0) cores.The core distribution and velocity structure are analyzed for this region. The relationship between cores, bipolar outflow and crowded young stellar objects (including infrared sources and HH objects) is also discussed in detail. |
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| Keywords: | interstellar molecules-molecular clouds-bipolar outflows-star formation |
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