Catalogue of 12CO(J = 1−0) and 13CO(J = 1−0) Molecular Clouds in the Carina Flare Supershell
Catalogue of 12CO(J = 1−0) and 13CO(J = 1−0) Molecular Clouds in the Carina Flare Supershell
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DOI：
10.1093/pasj/60.6.1297
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发表时间：
2008-08
影响因子：
2.3
通讯作者：
J. Dawson;A. Kawamura;N. Mizuno;T. Onishi;Y. Fukui
中科院分区：
文献类型：
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作者：
J. Dawson;A. Kawamura;N. Mizuno;T. Onishi;Y. Fukui
我们给出了在船底座耀斑超壳层GSH 287 $+$04$-$17的空间速度范围内的$^{12}$CO（$J =$1 -0）和$^{13}$CO（$J=$1 -0）分子云的目录。这些数据覆盖了66平方度的区域，由NANTEN 4米望远镜拍摄，空间和速度分辨率分别为2.6和0.1公里。分解的排放的结果中识别的156 $^{12}$CO云和60 $^{13}$CO云，我们提供了观测和物理参数。先前的工作表明，大部分检测到的质量形成了一个共同运动的分子云复合体的一部分，该复合体与膨胀的壳层有物理联系。云的内部速度色散，维里化程度和尺寸线宽的关系被发现是与其他银河系样品的一致。然而，垂直分布严重偏向高海拔地区。高z$分子云与已知的超壳层的强关联为膨胀的壳层有助于支持高海拔分子层的理论提供了一些观测支持。
We present a catalogue of $^{12}$CO($J=$ 1-0) and $^{13}$CO($J=$ 1-0) molecular clouds in the spatio-velocity range of the Carina Flare supershell, GSH287$+$04$-$17. The data cover a region of $\sim$66 square degrees and were taken with the NANTEN 4m telescope, at spatial and velocity resolutions of $\sim$2.6' and 0.1kms$^{-1}$. Decomposition of the emission results in the identification of 156 $^{12}$CO clouds and 60 $^{13}$CO clouds, for which we provide observational and physical parameters. Previous work suggests the majority of the detected mass forms part of a comoving molecular cloud complex that is physically associated with the expanding shell. The cloud internal velocity dispersions, degree of virialization and size-linewidth relations are found to be consistent with those of other Galactic samples. However, the vertical distribution is heavily skewed towards high-altitudes. The robust association of high-$z$ molecular clouds with a known supershell provides some observational backing for the theory that expanding shells contribute to the support of a high-altitude molecular layer.