Cosmological Galaxy Evolution with Superbubble Feedback I: Realistic Galaxies with Moderate Feedback

@article{Keller2015CosmologicalGE,
  title={Cosmological Galaxy Evolution with Superbubble Feedback I: Realistic Galaxies with Moderate Feedback},
  author={Benjamin W Keller and James Wadsley and Hugh M. P. Couchman},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2015},
  volume={453},
  pages={3499-3509}
}
We present the first cosmological galaxy evolved using the modern smoothed parti- cle hydrodynamics (SPH) code GASOLINE2 with superbubble feedback. We show that superbubble-driven galactic outflows powered by Type II supernovae alone can produce Lgalaxies with flat rotation curves with circular velocities � 200 km/s, low bulge-to-disc ratios, and stellar mass fractions that match observed values from high redshift to the present. These features are made possible by the high mass loadings… 
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References

SHOWING 1-10 OF 77 REFERENCES
Making Galaxies in a Cosmological Context: The Need for Early Stellar Feedback
We introduce the Making Galaxies in a Cosmological Context (MaGICC) program of smoothed particle hydrodynamics (SPH) simulations. We describe a parameter study of galaxy formation simulations of an
Gusty, gaseous flows of FIRE: Galactic winds in cosmological simulations with explicit stellar feedback
We present an analysis of the galaxy-scale gaseous outflows from the Feedback in Realistic Environments (FIRE) simulations. This suite of hydrodynamic cosmological zoom simulations resolves formation
Galaxy bimodality due to cold flows and shock heating
We address the origin of the robust bimodality observed in galaxy properties about a characteristic stellar mass ∼3 x 10 10 M ⊙ . Less massive galaxies tend to be ungrouped blue star forming discs,
Hierarchical formation of bulgeless galaxies: why outflows have low angular momentum
Using high resolution, fully cosmological smoothed particle hydrodynamical simulations of dwarf galaxies in a Lambda cold dark matter Universe, we show how high redshift gas outflows can modify the
A Superbubble Feedback Model for Galaxy Simulations
We present a new stellar feedback model that reproduces superbubbles. Superbubbles from clustered young stars evolve quite differently to individual supernovae and are substantially more efficient at
COSMOLOGICAL ZOOM SIMULATIONS OF z = 2 GALAXIES: THE IMPACT OF GALACTIC OUTFLOWS
We use high-resolution cosmological zoom simulations with ~200 pc resolution at z = 2 and various prescriptions for galactic outflows in order to explore the impact of winds on the morphological,
Simulating disc galaxy bulges that are consistent with observed scaling relations
ABSTRACT We present a detailed comparison between the photometric properties of the bulges oftwo simulated galaxies and those of a uniform sample of observed galaxies. This anal-ysis shows that the
A model for cosmological simulations of galaxy formation physics
We present a new comprehensive model of the physics of galaxy formation designed for large-scale hydrodynamical simulations of structure formation using the moving mesh code AREPO. Our model includes
The Formation of a Realistic Disk Galaxy in Λ-dominated Cosmologies
We simulate the formation of a realistic disk galaxy within the hierarchical scenario of structure formation and study its internal properties to the present epoch. We use a set of smoothed particle
Hierarchical formation of bulgeless galaxies – II. Redistribution of angular momentum via galactic fountains
Within a fully cosmological hydrodynamical simulation, we form a galaxy which rotates at 140 km s −1 , and it is characterized by two loose spiral arms and a bar, indicative of a Hubble-type SBc/d
...
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