恒星结构

OPAL不透明度对恒星结构和演化模型的影响

The Influences of OPAL Opacities on Stellar Structure and Evolution Models

在混合程对流理论的基础上建立起考虑湍流应力作用的恒星结构与演化模型，并计算了8M⊙。

Based on the mixing-length theory of convection , this paper establishes the mold of stellar structure and studies the evolution of star with 8M_ ⊙ from H-burning stages to the AGB stages considering the turbulences .

第二，在太阳对流区，ReynoldsStress张量和磁扰动张量的非对角分量引起对流区角动量的转移，从而改变恒星结构和演化的边界条件；

Secondly , in the solar convective zone , the non-diagonal parts of the Reynolds stress tensor and magnetic fluctuating tensor cause the angular momentum transport , which correct the boundary condition of the solar structure and evolution .

采用非平衡动力学方法研究由CNO循环决定的恒星结构稳定性，本文得出：CNO循环自身是稳定的；

The method of nonequilibrium dynamics is used to study the stability of stellar structure , including chemical reaction , diffusion and convection . We find that CNO cycle is stable .

恒星结构稳定性问题中的对流效应

The Convective Effect in Stability of Stellar structure

通过理论计算得到的恒星结构称为恒星模型。

Such configurations , obtained theoretically by calculation , are called models of a star .

在恒星结构和演化模型中，磁流体动力学过程作为一个非理想效应并没有被考虑。

As a non-ideal effect , magnetohydrodynamics is not considered in the stellar structure and evolution .

转动恒星结构与演化研究

Structure and Evolution of Rotating Stars

恒星结构的稳定性研究

Stability of the Stellar Structure

经典的恒星结构与演化模型成功地解释了当时大多数恒星的观测特性。

Classic stellar structure and evolution model successfully explained the observation characteristics of most of stars at that time .

借助一定的恒星结构与演化程序，可以按要求构造各种假定的模型。

With the help of a certain stellar structure and evolution code , one can construct his own desired stellar model .

因此，总的效果是修正了恒星结构和演化中的物态方程、流体静力学方程、边界条件和对流区底部的能流密度。

Consequently , the result is that we modify the equation of state , hydrostatic equilibrium equation , the boundary condition and the energy flux .

考虑自转效应后，恒星结构和演化模型将是二维模型，本文回顾了诸多作者如何将二维的恒星结构和演化模型简化为一维模型。

The stellar structure and evolution model will be two dimensional due to the effects of rotation , but many scientists have tried to simplify the two dimensional stellar structure and evolution model to one dimensional .

根据精确的恒星内部结构理论，可以建立这种关系。

From the accurate theory of stellar interiors one can establish such a dependence .

原子核理论研究恒星的结构和演化，元素的起源和核合成，以及宇宙线问题。

The theoretical study of nuclear structure and the origin and evolution of stars elements of nuclear and cosmic ray problem .

指出在研究变星脉动和具有延伸对流区的恒星内部结构时，湍流雷诺应力的作用是不可忽略的。

It is shown that the effect of turbulent pressure on the structure and the vibrational stability of stars with extensive convective envelopes is not negligible .

同时随着日震学的成熟发展，星震学也成为探测恒星内部结构的一种基本工具。

And age smaller than the Sun . Following the success of helioseismology , asteroseismology is now becoming a fundamental tool for penetrating the internal structure of stars .

通过这些观测数据，我们可以更好的研究低质量恒星的结构演化，构造类太阳振动恒星的结构模型，更好的检验恒星结构演化理论。

Using these oscillations , we can study the stellar structure and evolution of low mass stars , construct the stellar model and test the stellar evolution theory .

考虑了重元素扩散效应之后可以使恒星的结构演化模型更加完善，这不仅对小质量恒星的研究有重要的影响，同时对研究整个恒星结构演化中的物理问题也具有一定的意义。

Considering the heavy element diffusion , it could perfect the stellar structure models . It is important to study the physical problems about the stellar structure and evolution not only for low-mass stars but also for all the stars .

通过分析恒星内部结构的变化，基于在演化计算中质量损失率公式应采取连续的分段函数的考虑，提出恒星演化阶段的分界点的不同会影响恒星在赫罗图中演化轨迹的观点。

By studying the variety of inner structure of stars , an attitude that different demarcation point of stellar evolutional stages can affects the evolutionary track in the Hertzsprung-Russell diagram is developed , based on mass loss rate is a consecutive piecewise function in the stellar evolution calculations .

考虑了重元素（包括氦元素和金属元素）扩散效应之后来构造εEridani恒星的平衡结构模型。

Considering the heavy element ( including helium and metal element ) diffusion , we construct the stellar structure models of ε Eridani .

类太阳活动恒星表面黑子结构的多普勒成像（Ⅰ）：技术

Doppler Imaging of Spot Structure on the Surface of Star With Sun-like Activity (ⅰ): Technique

艾伦的母亲，在他17岁生日时，送给他一本爱丁顿的《恒星的内部结构》，还有一个1.5英寸的望远镜。

Alan had been given Eddington 's Internal Constitution of the Stars by his mother for his seventeenth birthday , and had also acquired a 11 / 2-inch telescope .

恒星的自转，是恒星结构和演化理论的难点。

Stellar rotation is a difficult problem of the theory of stellar structure and evolution .

SiO脉泽速度频谱的一种分析模型&恒星脉动对恒星包层速度结构的影响

An Analytical Model for the Velocity Spectra of SiO Maser & the Effect of Stellar Pulsation on the Velocity Structure in Stellar Envelope

如何处理恒星中的对流运动，是恒星结构和演化理论中一个极为重要的问题。

How to deal with the turbulent convection motion in stars is a very important problem in the theory of stellar structure and evolution .

自上世纪中叶以来，恒星物理研究揭示了大质量恒星内部结构和演化的主要特性，并且构造了一些大质量恒星的演化模型。

Since the middle of the twentieth century , we have been cognizant of the main characters of the structure and evolution of massive stars approximately and some evolution models have been constructed .

在不考虑恒星自转的情况下，恒星内的等势面是球对称结构，从而可以将恒星结构和演化模型简化为一维模型。

Without considering the rotation of the stars , equipotential surface in the stars is the spherically symmetric structure , so the stellar structure and evolution model can be simplified into one-dimensional model .

结果表明，对于7M⊙恒星，在红巨星及AGB阶段，湍流压可以达到总压强的30%，并且对恒星的结构产生重要影响，对于2.8M⊙恒星，在红巨星及AGB阶段影响较小。

The results show that the turbulent pressure can be 30 percent of the total pressure in the regions closed to the surface of an AGB star with 7M ⊙ and has an important influence on the inner structure and evolution .

年轻恒星中~9Be丰度的研究，和其它轻元素Li、B一起，可以作为恒星内部运作机制的探针，用于研究恒星的结构和演化。

Moreover , the study of beryllium abundances in young stars , together with lithium and boron , can provide a strong test for understanding stellar structure and discriminate between possible non-standard mixing processes in stellar interiors .