Studies in Stellar Evolution. III. The Calculation of Model Envelopes.
Studies in Stellar Evolution. III. The Calculation of Model Envelopes.
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DOI：
10.1086/148357
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发表时间：
1965-10
期刊：
影响因子：
--
通讯作者：
L. G. Henyey;M. Vardya;P. Bodenheimer
中科院分区：
文献类型：
--
作者：
L. G. Henyey;M. Vardya;P. Bodenheimer
对现有的对流包络中表示超绝热层的技术所依据的形式理论进行了重新检验。特别强调讨论不确定点和可能存在的争议。这种分析是以一种允许用公式表示某些常数的形式进行的，其值的任意性代表了理论中固有的不确定性。基于这些常数的不同值的并行计算导致对它们对赫茨斯普龙格-罗素图中进化轨迹的影响的定量评估。产生显著影响的原因是混合长度与鳞片高度之比的不确定性，以及可能由于对低温下的不透明度了解不足。
The formal theory underlying existing techniques for representing the superadiabatic layers in convective envelopes is re-examined. Particular emphasis is placed on the discussion of points of uncertainty and possible controversy. The analysis has been carried out in a form which permits the formulation of certain constants, the arbitrariness of whose values represents the inherent uncertainty in the theory. Parallel calculations based on different values of these constants lead to a quantitative evaluation of their effect upon evolutionary tracks in the Hertzsprung-Russell diagram. Marked effects result from uncertainties in the ratio of mixing length to scale height and possibly from inadequate knowledge concerning opacities at low temperatures.