Stellar Kinematics and Molecular Gas toward NGC 6357: An Overlooked Earlier Stellar Generation

Tung Wei Goh, Satoya Nakano, Kengo Tachihara +1

We investigate past star formation in NGC 6357 using Gaia DR3 astrometry and Three-mm Ultimate Mopra Milky Way Survey (ThrUMMS) ${}^{12}$CO($J=1$--0) data. A Hierarchical Density-Bas…