Fig. 1: The age distributions of our star sample.
From: Potential impact of the Sagittarius dwarf galaxy on the formation of young O-rich stars

a Rguide (guiding radius)-\({{{{\rm{z}}}}}_{\max }\) (maximum vertical distance from the disc plane) distributions of sample stars, colour-coded by stellar ages. The vertical dashed lines in the top panel indicate the division into three Rguide bins (inner, local, and outer) at Rguide = 7 and 9 kpc. The horizontal dashed line indicates the division of each Rguide bin into two \({{{{\rm{z}}}}}_{\max }\) bins (high-\({{{{\rm{z}}}}}_{\max }\) and low-\({{{{\rm{z}}}}}_{\max }\)) at \({{{{\rm{z}}}}}_{\max }\) = 0.4 kpc. b The age distributions (density distributions, based on the kernel density estimates) of spatially selected subsamples (inner, local, and outer) in high-\({{{{\rm{z}}}}}_{\max }\) region. c The age distributions (density distributions) of spatially selected subsamples (inner, local, and outer) in low-\({{{{\rm{z}}}}}_{\max }\) region. Source data are provided as a Source Data file.