Unveiling The Birth of Star Cluster Groups in The Milky Way
A recent study published in Astronomy & Astrophysics has discovered four new primordial open cluster groups in the Milky Way, revealing that these groups formed through sequential star formation processes from the same giant molecular cloud. Notably, two groups, G1 and G2, were formed following a hierarchical mechanism triggered by multiple supernova explosions, as indicated by distinct ring-like and arc-like morphologies. Researchers used high-precision data from the Gaia satellite to analyze these clusters, establishing a clear age-distance correlation that supports the triggered star formation framework.