Colour distributions of globular clusters from N-body models of various metallicity


We use N-body simulations to study globular clusters with different metallicities in the tidal field of a Milky Way type galaxy.
Our analysis focuses on 1) the evolution of core and half light radii with time and 2) the mass loss of the star cluster due to 
stellar evolution and interactions with the tidal field of the host galaxy. Structural parameters were retrieved from our 
simulations as if it were observational data.
We also analyze the evolution and dynamical interaction of binary systems (primordial as well as binaries formed due to 
stellar encounters), especially long-lived binary black holes at the centre of the globular cluster and their influence on 
structural characteristics on the cluster as a whole.
In addition, we determine how integrated colors of a globular cluster are affected by the dynamics as a function of time and 
metallicity when incorporating an N-body code that combines stellar, binary and dynamical evolution.