Gas flow in the barred spiral galaxy NGC 5383
Gas flow in the barred spiral galaxy NGC 5383
复制标题
棒旋星系 NGC 5383 中的气体流动
DOI：
10.1086/182803
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发表时间：
1978
期刊：
影响因子：
--
通讯作者：
J. M. Huntley
中科院分区：
文献类型：
--
作者：
J. M. Huntley
用棒旋星系数值流体动力学模型计算出的视距气体速度与Peterson、Rubin、Ford和Thonnard对NGC 5383气体流动的观测和模型进行了比较。流体动力学模型比对称的扭曲盘模型更符合NGC 5383的观测结果。本文认为，适合理解棒旋星系中气体运动的基本模型不是圆旋转，而是典型的椭圆流动模式。
Line-of-sight gas velocities calculated from a numerical hydrodynamical model of a barred spiral galaxy are compared with the observations and models made by Peterson, Rubin, Ford, and Thonnard of the gas flow in NGC 5383. The hydrodynamical model provides a somewhat better fit to the observations of NGC 5383 than does their symmetric, warped-disk model. It is argued that the basic model appropriate to understanding the gas motions in barred spiral galaxies is not circular rotation but rather a characteristic elliptical pattern of flow.