Observed Cluster Properties: Quantitative Clustering
Mean Surface Density of Companions
- “binary/multiple regime”: constant slope
- “clustering regime”: different slopes
- break point related to stellar density?
Differences in IMFs between regions are not as dramatic as differences in MSDCs, so relationship to Jean’s mass is not obvious (Larson, 1995)
Simulations show that break points correlate with rcore and rhalf mass (Klessen & Kroupa 2001)