标准太阳演化模型中的速跃层位置、光度输运时标、转动惯量及其随时间的变化
On the Tachocline Zone Location in the Sun, the Luminosity Transport time scale, the Rotational Inertia and their Time Variation in Standard Solar Evolution Models
摘要：
使用GONG标准太阳演化模型对太阳从ZAMS阶段的演化进行采样的研究显示了以下内容。速斜带的位置几乎是固定的，因为它不受壳燃烧的影响，尽管它与太阳的膨胀共同移动，直到现在的4.6 Gyr。太阳的光度输运时间尺度完全由光子扩散控制，在演化过程中从204000年减少到187000年。太阳的转动惯量从6.73x10^46 kg m^2逐渐增加到目前的7.09x10^46 kg m^2，但在同一时期，惯性常数从0.0911减小到0.0736。
英文摘要：
Studies with GONG Standard Solar Evolution Models sampling the evolution of the sun from its ZAMS stage show the following. The location of the tachocline zone is nearly fixed as it is not affected by shell burning although it co-moves with the expansion of the sun up to the present age of 4.6 Gyr. The luminosity transport time scale of the sun is entirely dominated by photon diffusion and during the evolution has decreased from over 204000 years to 187000 years. The rotational inertia of the sun shows a small gradual increase from 6.73x10^46 kg m^2 to 7.09x10^46 kg m^2 at present but the inertia constant decreases from 0.0911 to 0.0736 during the same period.
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