ON THE ORIGIN OF BIMODAL HORIZONTAL BRANCHES IN MASSIVE GLOBULAR CLUSTERS: THE CASE OF NGC 6388 AND NGC 6441

摘要

Despite the efforts of the past decade, the origin of the bimodal horizontal branch (HB) found in some globular clusters (GCs) remains a conundrum. Inspired by the discovery of multiple stellar populations in the most massive Galactic GC, ω Centauri, we i