论文标题
解决Kepler Legacy样本的星空震动的能力
Resolving Power of Asteroseismic Inversion of the Kepler Legacy Sample
论文作者
论文摘要
Kepler AsteroseScic Legacy项目为66个开普勒主序列目标提供了频率，分离比，错误估计和协方差矩阵。对这些数据的先前分析的大多数都集中在拟合标准恒星模型上。我们使用最佳局部平均（OLA）的方法提出了直接的Asterosic反演的结果，该方法有效地消除了表面效应并尝试解决恒星核心结构。为各种结构属性提供了反转，包括密度分层和声速。结果表明，在后台后序列F型星中观察到的混合模式使我们能够解决恒星核心结构，并揭示与通过网格拟合程序获得的进化模型的显着偏差，以匹配观察到的振荡频率。
The Kepler Asteroseismic Legacy Project provided frequencies, separation ratios, error estimates, and covariance matrices for 66 Kepler main sequence targets. Most of the previous analysis of these data was focused on fitting standard stellar models. We present results of direct asteroseismic inversions using the method of optimally localized averages (OLA), which effectively eliminates the surface effects and attempts to resolve the stellar core structure. The inversions are presented for various structure properties, including the density stratification and sound speed. The results show that the mixed modes observed in post-main sequence F-type stars allow us to resolve the stellar core structure and reveal significant deviations from the evolutionary models obtained by the grid-fitting procedure to match the observed oscillation frequencies.
