Computer Experiments on the Effect of Retrograde Stars.
Computer Experiments on the Effect of Retrograde Stars.
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关于逆行恒星影响的计算机实验。
DOI：
10.1086/156636
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发表时间：
1978
影响因子：
4.8
通讯作者：
F. Hohl
中科院分区：
文献类型：
--
作者：
T. Zang;F. Hohl
利用大尺度的N体计算方法，研究了不同比例恒星的角动量反转对整体棒形成模式的影响。这些模拟的初始条件是基于两类模型的定态：Kalnajs最近通过线性理论研究的等时线，以及类似于我们自己的银河系的施密特模型的模型。在这两种情况下，随着逆行恒星比例的增加，棒形成模式的增长受到抑制（尽管没有消除）。这些等时线的N体结果与线性理论的预言在定量和定性上一致。
Using large-scale N-body calculations for flat disk galaxies, we examine the effect of reversing the angular momentum for various fractions of the stars upon the global bar-forming mode. The initial conditions for these simulations are based on stationary states of two classes of models: the isochrones studied recently by Kalnajs by means of linear theory, and a model resembling the Schmidt model of our own Galaxy. In both cases, as the fraction of retrograde stars is increased, the growth of the bar-forming mode is inhibited (although not eliminated). These N-body results for the isochrones agree with the predictions of linear theory, quantitatively as well as qualitatively.