ACES Metallicity Distribution in the LMC and SMC Based on Tip-RGB Colors

Explore a detailed astronomical research presentation examining the metallicity distribution in the Large and Small Magellanic Clouds using tip-red-giant branch (TRGB) color analysis. Learn how researchers utilized the color index (J - K)0 of TRGB stars to analyze metallicity gradients across four major directions in both galaxies. Discover the comprehensive findings from the largest pure sample of red member stars to date, with the LMC divided into 154 bins and the SMC into 70 bins using Voronoi binning techniques. Understand the specific metallicity gradients measured in each direction, extending to distances of 16 kpc in the LMC and 27 kpc in the SMC, with detailed analysis of the poison-noise weighted method used to determine TRGB positions on near-infrared color-magnitude diagrams.