Dataset for "A hot subdwarf–white dwarf super-Chandrasekhar candidate supernova Ia progenitor"

Follow-up spectra and evolutionary models obtained for the manuscript "A hot subdwarf–white dwarf super-Chandrasekhar candidate supernova Ia progenitor", published in Nature Astronomy (https://doi.org/10.1038/s41550-021-01413-0). This repository includes: Spectra taken with the Double-Beam Spectrograph at the Palomar 200-inch telescope, reduced with a PyRAF-based pipeline (https://github.com/ebellm/pyraf-dbsp). Files start with DBSP*, and are separated by spectrograph arm (blue or red). Flux (flux.spec) and flux error (flux.err) are in different files. We provide both fits and ascii files. Spectra taken with the Echellette Spectrograph and Imager (ESI) at the Keck II telescope, reduced with the MAKEE pipeline (http://www.astro.caltech.edu/~tb/ipac_staff/tab/makee). Fits and ascii files are provided. MESA inlists and resulting data for simulations carried out for the paper. A README file is included in the zip file with further information.本数据集为发表于《Nature Astronomy》的论文《热亚矮星-白矮星超钱德拉塞卡候选Ia型超新星前身星》(A hot subdwarf–white dwarf super-Chandrasekhar candidate supernova Ia progenitor)（DOI: 10.1038/s41550-021-01413-0）的后续光谱与演化模型相关数据。本仓库包含如下内容：1. 帕洛玛200英寸望远镜（Palomar 200-inch telescope）搭载双光束光谱仪（Double-Beam Spectrograph, DBSP）所获取的光谱，使用基于PyRAF的处理流程（https://github.com/ebellm/pyraf-dbsp）进行归算。文件命名以DBSP*开头，按光谱仪工作臂（蓝光臂与红光臂）区分。通量数据（flux.spec）与通量误差数据（flux.err）分别存储于独立文件中，同时提供FITS与ASCII两种格式的文件。2. 凯克II望远镜（Keck II telescope）搭载阶梯光栅光谱仪与成像仪（Echellette Spectrograph and Imager, ESI）所获取的光谱，使用MAKEE处理流程（http://www.astro.caltech.edu/~tb/ipac_staff/tab/makee）进行归算，同样提供FITS与ASCII格式文件。3. 用于本文数值模拟的MESA计算配置文件及最终结果数据。压缩包内附带README文件，可获取更多详细信息。