Self-consistent proto-globular cluster formation in cosmological simulations of high-redshift galaxies

@article{Ma2019SelfconsistentPC,
  title={Self-consistent proto-globular cluster formation in cosmological simulations of high-redshift galaxies},
  author={X. Ma and M. Y. Grudi'c and E. Quataert and P. Hopkins and C. Faucher-Giguere and M. Boylan-Kolchin and A. Wetzel and J. Kim and N. Murray and Duvsan Kerevs Berkeley and Caltech. and Northwestern and U. Austin and U. Davis and Snu and Cita and Ucsd},
  journal={arXiv: Astrophysics of Galaxies},
  year={2019}
}
We report the formation of bound star clusters in a sample of high-resolution cosmological zoom-in simulations of z>5 galaxies from the FIRE project. We find that bound clusters preferentially form in high-pressure clouds with gas surface densities over 10^4 Msun pc^-2, where the cloud-scale star formation efficiency is near unity and young stars born in these regions are gravitationally bound at birth. These high-pressure clouds are compressed by feedback-driven winds and/or collisions of… Expand
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