Constraining Globular Cluster Formation Through Studies of Young Massive Clusters: I. A lack of ongoing star formation within young clusters

N. Bastian, I. Cabrera-Ziri, B. Davies +1

We present a survey of 130 Galactic and extragalactic young massive clusters (YMCs, $10^4 < M/\msun < 10^8$, $10<t/\mathrm{Myr}<1000$) with integrated spectroscopy or resolved ste…