论文标题
银河中心周围的Hi-Gas的一千PC膨胀气缸
One-kpc Expanding Cylinder of HI-Gas around the Galactic Center
论文作者
论文摘要
我们通过分析文献中的21 cm线调查数据来报告发现半径1 kpc和垂直范围800 pc的HI气体的扩展缸。该气缸膨胀在150 km s $^{ - 1} $，并以100 km s $^{ - 1} $旋转，并被解释为归因于$ \ sim $ \ sim 180 $ km s $ s $^{ - 1} $的高速圆锥风。气缸的总质量估计为$ \ sim 8.5 \ times 10^5 m_ \ odot $和动能$ \ sim 3 \ times 10^{53} $ ergs。
We report the discovery of an expanding cylinder of HI gas of radius 1 kpc and vertical extent 800 pc by analyzing the 21-cm line survey data from the literature. The cylinder is expanding at 150 km s$^{-1}$ and rotating at 100 km s$^{-1}$, and is interpreted as due to a high-velocity conical wind at $\sim 180$ km s$^{-1}$ from the Galactic Center. The total mass of the cylinder is estimated to be $\sim 8.5\times 10^5 M_\odot$ and kinetic energy $\sim 3\times 10^{53}$ ergs.
