Making Galaxies in a Cosmological Context: The Need for Early Stellar Feedback

  title={Making Galaxies in a Cosmological Context: The Need for Early Stellar Feedback},
  author={G. Stinson and C. Brook and A. Macci{\`o} and J. Wadsley and T. Quinn and H. Couchman and Mpia and UAMadrid and McMaster and U. Washington},
  journal={Monthly Notices of the Royal Astronomical Society},
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 L* galaxy that uses early stellar feedback combined with supernova feedback to match the stellar mass--halo mass relationship. While supernova feedback alone can reduce star formation enough to match the stellar mass--halo mass relationship, the galaxy forms too many stars before z=2 to match the… Expand
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