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

  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},
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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