Measuring Detailed Chemical Abundances From Co-added Medium Resolution Spectra I. Tests using Milky Way dwarf spheroidal galaxies and globular clusters

Lei Yang, Evan N. Kirby, Puragra Guhathakurta +2

The ability to measure metallicities and α-element abundances in individual red giant branch (RGB) stars using medium-resolution spectra ($R\approx 6000$) is a valuable tool for d…