On the origin of globular clusters in a hierarchical universe
Dynamical friction
DOI:
10.1093/mnras/stae1006
Publication Date:
2024-04-13T02:27:35Z
AUTHORS (5)
ABSTRACT
ABSTRACT We present an end-to-end description of the formation globular clusters (GCs) combining a treatment for their and dynamical evolution within galaxy haloes with state-of-the-art semi-analytic simulation formation. Our approach allows us to obtain exquisite statistics study effect environment assembly history galaxies, while still allowing very efficient exploration parameter space. reference model, including both cluster disruption during mergers friction GCs galactic potential, accurately reproduces observed correlation between total mass in parent halo mass. A deviation from linearity is predicted at low-halo masses, which driven by strong dependence on morphological type: bulge-dominated galaxies tend host larger masses than later-type counterparts. While significance difference might be affected resolution lowest considered, this robust prediction our model natural consequence assumption that migration into triggered mergers. requires environmental GC radii reproduce low-mass distribution Galaxy. At $\gt 10^6\, {\rm M}_\odot$, predicts fewer observed, due overly aggressive friction. well metallicity measured Galactic GCs, even though we predict systematically younger observed. argue adds further evidence anomalously early stars
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