Figure 6.
![The MDF for the galaxy based on stars within 4rs from the centre of Sag DIG is shown in the top panels in green. The scaled MDF for the background field, consisting mostly of foreground Milky Way stars, is shown in red. The subtracted MDF is shown in the bottom panels. On the left, the analysis is conducted using 6 Gyr isochrones, whereas on the right, a 12 Gyr set of isochrones is used. The solid line indicates the median value, while the dashed lines represent interquartile range between 16 per cent and 84 per cent, approximating 1σ. We lack of knowledge of the distribution more metal poor than [Fe/H] ∼ 2.2, since there are a significant numbers of stars with colours bluer than the bluest isochrone ([Fe/H] = −2.2 dex).](https://oup.silverchair-cdn.com/oup/backfile/Content_public/Journal/mnras/458/2/10.1093_mnras_stw257/3/stw257fig6.jpeg?Expires=1750520224&Signature=LjRRT87ywmQCbCugTgx86lhgla4t7lQHfpUHNt9D7QnDjxXa1lDhjtvJz7xQmt344HBMc1W9i8z~CxrciRVJHpI8Pe4HZXncPR6-xuiRvrwv8k-novGKSd9nYe12nF1EPemxf~19Yik8nuzt2YSp9-YClddk-ITWGiqEnJKOfbGIMqEu6QwDGnMy36lSExqZiMwL0VUPVO2oFylwRv4tt0gPBWJI4gS-5xfggclmDYRziW7NAcY1CIpppMrhlwwOlUCRwG1ve~TYzWA9LnrVB2UQXKgW~33U~cmcL1Me58-zihCLFTWcch76zUH19NRcr3J5eMybXP4qsyLJmhFMXA__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
The MDF for the galaxy based on stars within 4rs from the centre of Sag DIG is shown in the top panels in green. The scaled MDF for the background field, consisting mostly of foreground Milky Way stars, is shown in red. The subtracted MDF is shown in the bottom panels. On the left, the analysis is conducted using 6 Gyr isochrones, whereas on the right, a 12 Gyr set of isochrones is used. The solid line indicates the median value, while the dashed lines represent interquartile range between 16 per cent and 84 per cent, approximating 1σ. We lack of knowledge of the distribution more metal poor than [Fe/H] ∼ 2.2, since there are a significant numbers of stars with colours bluer than the bluest isochrone ([Fe/H] = −2.2 dex).
