[Fe/H] from RR Lyrae light curves

We present an accurate and robust method for the calculation of [Fe/H] from the light curves of RRab stars. The method introduces a considerable improvement relative to our...我们提出了一种基于RRab型变星（RRab stars）光变曲线计算[Fe/H]的精准且鲁棒的方法。相较于我们此前的相关工作，该方法实现了显著的改进