论文标题
银河化学演化] {太阳能邻域，太阳能双胞胎和系外行星指标的银河化学演变
Galactic chemical evolution]{Galactic chemical evolution of the solar neighborhood, solar twins and exoplanet indicators
论文作者
论文摘要
银河化学演化（GCE），太阳类似物或双胞胎以及太阳组成相对于双胞胎的特征性是密不可分的。我们检查了文献中的GCE参数，并使用二次拟合呈现新得出的值，该二次拟合使太阳时代（即4.6 Gyr）零。我们展示了GCE参数如何不仅可以用来“正确”到太阳时代的“纠正”丰度，还可以预测相对元素丰度与年龄的函数。我们解决了一个问题，即在折射率中是否会耗尽太阳丰度并在挥发物中增强，并发现答案对选择代表标准很敏感。最好的质量数据集并不支持这样的观念，即太阳在折射率中耗尽并增强了挥发物。一个简单的模型使我们能够估计太阳缺少耐火材料的材料的量或交替添加到平均太阳能双胞胎中。该模型给出零至1.4的地球质量。
Galactic chemical evolution (GCE), solar analogues or twins, and peculiarities of the solar composition with respect to the twins are inextricably related. We examine GCE parameters from the literature and present newly derived values using a quadratic fit that gives zero for a Solar age (i.e., 4.6 Gyr). We show how the GCE parameters may be used not only to "correct" abundances to the solar age, but to predict relative elemental abundances as a function of age. We address the question of whether the solar abundances are depleted in refractories and enhanced in volatiles and find that the answer is sensitive to the selection of a representative standard. The best quality data sets do not support the notion that the Sun is depleted in refractories and enhanced in volatiles. A simple model allows us to estimate the amount of refractory-rich material missing from the Sun or alternately added to the average solar twin. The model gives between zero and 1.4 earth masses.
