Synthetic stellar spectra to study multiple populations in globular clusters: an extended grid and the effects on the integrated light

Vinicius Branco, Paula R. T. Coelho, Ariane Lançon +2

Most Galactic Globular Clusters (GCs) harbour multiple populations of stars (MPs), composed of at least two generations: the first characterized by a "standard" $\hat{I}\pm$-enhanced metal…