MOCCA-survey data base: extra galactic globular clusters – II. Milky Way and Andromeda

A comprehensive study of the co-evolution globular cluster systems (GCS) in galaxies requires ability to model both large scale dynamics (0.01 - 10 kpc) regulating their orbital evolution, and small (sub-pc AU) internal each (GC). In this work we present a novel method that combine semi-analytic models GCS with fully self-consistent Monte Carlo simultaneously evolve GCSs. We use population synthesis code MASinGa MOCCA-Survey Database I create synthetic GC populations aimed at representing observed features GCs Milky Way (MW) Andromeda (M31). Our procedure enables us recover spatial mass distribution such galaxies, constrain amount left either halo as dispersed debris, or galactic centre, where they can contribute formation nuclear star (NSC) bring stellar possibly intermediate black holes there. The final masses reported by our simulations are few order magnitudes smaller than values. These differences show build-up NSC central BHs like MW M31 cannot be solely explained infalling scenario. This is likely depend on interplay between interactions mergers gas. latter in-situ growth BH.