The Lifecycle of Clusters in Galaxies
Angela Adamo (SU), Nate Bastian (LJMU)

TL;DR
This paper reviews star cluster properties, their relation to host galaxy features, and how cluster formation and disruption processes vary with environment, highlighting observational and theoretical insights into cluster lifecycle dynamics.
Contribution
It provides a comprehensive synthesis of how galaxy environment influences star cluster formation efficiency and disruption, integrating observational data with theoretical predictions.
Findings
Cluster mass and luminosity functions follow power-laws with a slope of ~-2.
Environmental factors cause the steepening of these functions at high masses/luminosities.
Cluster formation efficiency varies with galaxy properties, especially star-formation rate density.
Abstract
We review many of the basic properties of star cluster systems, and focus in particular on how they relate to their host galaxy properties and ambient environment. The cluster mass and luminosity functions are well approximated by power-laws of the form , with over most of the observable range. However, there is now clear evidence that both become steeper at high masses/luminosities, with the value of the downward turn dependent on environment. The host galaxy properties also appear to affect the cluster formation efficiency ( - i.e., the fraction of stars that form in bound clusters), with higher star-formation rate density galaxies having higher values. Within individual galaxies, there is evidence for to vary by a factor of 3-4, likely following the molecular gas surface density, in agreement with recent predictions.…
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