Data for the paper "Uncovering the birth of the Milky Way through accurate stellar ages with Gaia", accepted in Nature Astronomy

Data files used in the paper that contain information that is not available in public catalogues, and that is necessary to produce the figures. The extended dataset consists of: i) (<strong>a</strong> and <strong>b</strong> panels of figure 1): two tables directly retrieved from the Gaia archive as described in Methods, supplemented by extinction information on a star-by-star basis; the code used to interpolate the 3-D extinction maps by Lallement et al. (2018) can be retrieved from \url{https://github.com/edober/dust_maps_3d}. ii) (<strong>c</strong> and <strong>d</strong> panels of Figure 1, Figure 2 and panel <strong>a </strong>of Figure 3): two tables with the derived solution CMDs. Two files with the necessary data to define the boxes used to select stars in the blue and red sequences of the halo CMD are also included. iii) (panel <strong>b</strong> of Figure 3): necessary tables with the age, metallicity and velocity data for the main progenitor and accreted satellite for realisation g15784 of the MaGICC program (Brook et al. 2012). The complete information on the final timestep of that simulation, together with scripts to read and plot the data are also included in the extended dataset. A explanatory README is contained within the tar file.本论文所用的数据文件包含公开天文目录中未收录的、且为绘制论文所需图表所必需的信息。 本扩展数据集包含以下内容： i) 对应图1的(a)、(b)子图：两张直接从盖亚（Gaia）天文档案库获取的表格（详见论文方法部分），补充了逐恒星的消光信息；用于插值Lallement等人(2018)三维消光图的代码可从https://github.com/edober/dust_maps_3d 获取。 ii) 对应图1的(c)、(d)子图、图2以及图3的(a)子图：两张包含推导出的星等-颜色图（CMD）结果的表格。此外还收录了两份数据文件，用于定义筛选晕族星等-颜色图蓝、红序列恒星的选择框参数。 iii) 对应图3的(b)子图：包含MaGICC项目算例g15784的主前身天体与吸积卫星的年龄、金属丰度与速度数据的必要表格（Brook et al. 2012）。该模拟最终时间步的完整信息，以及用于读取和绘制该数据的脚本，也一并收录于扩展数据集。 该tar格式压缩包中包含一份说明性README文档。