Fiery Cores: Bursty and Smooth Star Formation Distributions across Galaxy Centers in Cosmological Zoom-in Simulations

@article{Orr2021FieryCB,
  title={Fiery Cores: Bursty and Smooth Star Formation Distributions across Galaxy Centers in Cosmological Zoom-in Simulations},
  author={Matthew E. Orr and H Perry Hatchfield and Cara Battersby and Christopher C. Hayward and Philip F. Hopkins and Andrew Wetzel and Samantha M. Benincasa and Sarah R. Loebman and Mattia C. Sormani and Ralf S. Klessen},
  journal={The Astrophysical Journal Letters},
  year={2021},
  volume={908}
}
We present an analysis of the R ≲ 1.5 kpc core regions of seven simulated Milky Way-mass galaxies, from the FIRE-2 (Feedback in Realistic Environments) cosmological zoom-in simulation suite, for a finely sampled period (Δt = 2.2 Myr) of 22 Myr at z ≈ 0, and compare them with star formation rate (SFR) and gas surface density observations of the Milky Way’s Central Molecular Zone (CMZ). Despite not being tuned to reproduce the detailed structure of the CMZ, we find that four of these galaxies are… Expand
Dynamically Driven Inflow onto the Galactic Center and its Effect upon Molecular Clouds
The Galactic bar plays a critical role in the evolution of the Milky Way’s Central Molecular Zone (CMZ), driving gas toward the Galactic Center via gas flows known as dust lanes. To explore theExpand
Cosmological Simulations of Quasar Fueling to Subparsec Scales Using Lagrangian Hyper-refinement
We present cosmological hydrodynamic simulations of a quasar-mass halo (M halo ≈ 1012.5 M ⊙ at z = 2) that for the first time resolve gas transport down to the inner 0.1 pc surrounding the centralExpand

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