This is a mock catalog of globular clusters calculated with a model for the formation and evolution of globular cluster systems. This catalog and the current version of the model are published in Chen & Gnedin (2023b). It is based on the earlier versions developed in Muratov & Gnedin (2010), Li & Gnedin (2014), Choksi et al. 2018, Choksi & Gnedin 2019a, Choksi & Gnedin 2019b, Chen & Gnedin (2022), Chen & Gnedin (2023a).
The catalog matches the observed mass function, radial and velocity dispersion profiles, and the age-metallicity distribution (as much as possible) of the globular cluster systems in the MW and M31. The spatial and kinematic information is based on tagging particles from the Illustris TNG50 simulation or the Local Group simulation.
The catalog of clusters remaining gravitationally bound to redshift host_id_form and host_id_accrete to mark clusters formed in the central halo (in-situ) and in satellite galaxies (ex-situ), and gives the time of accretion for the ex-situ clusters.
The catalog of disrupted clusters contains also the time of disruption. The coordinates and other orbital information is for the center of mass of the resulting stellar stream. The model generates clusters with a minimum initial mass of
The MW catalog contains 3 systems most resembling the Milky Way in their mass assembly history and in the properties of the GC system. Each galaxy provides an alternative possible history of the assembly of the MW globular cluster system. GC systems can be analyzed for all 3 galaxies combined, or for each galaxy separately.
The M31 catalog similarly contains 3 systems most resembling the Andromeda galaxy in their mass assembly history and in the properties of the GC system. Each galaxy provides an alternative possible history of the assembly of the M31 globular cluster system. The adjustable model parameters are the same as for the MW catalog.
The source code of the model is available in this repository.