Introducing EMP-Pathfinder: modelling the simultaneous formation and evolution of stellar clusters in their host galaxies

• DOI: 10.1093/mnras/stac1934
• Publication Date: 2022-07-13T18:22:13Z
• Authors: Marta Reina-Campos; Benjamin W Keller; J M Diederik Krui...; Jindra Gensior; Sebastian Trujill...; Sarah M R Jeffreson; Joel L Pfeffer; Alison Sills
• Keywords: Stellar mass

ABSTRACT The formation and evolution of stellar clusters is intimately linked to that their host galaxies. To study this connection, we present the emp-Pathfindersuite cosmological zoom-in Milky Way-mass simulations. These simulations contain a subgrid description for cluster evolution, allowing us simultaneous alongside galaxies across cosmic time. As key ingredient in these simulations, include physics multiphase nature interstellar medium (ISM), which enables studies how presence cold, dense ISM affects star evolution. We consider two different prescriptions: constant efficiency per free-fall time, as well an environmentally dependent, turbulence-based prescription. identify results drawn from First, find tidal shock-driven disruption caused by graininess cold produces old ($\tau \gt 10~\mbox{${\rm Gyr}$}$) populations with properties are excellent agreement observed Way M31. Importantly, addition addresses areas disagreement found previous lacked gas phase. Secondly, extremely sensitive baryonic govern reservoir galaxy. This implies demographics population represent important diagnostic tool constraining models upcoming galaxy also ISM.