Cosmological Simulations of Quasar Fueling to Subparsec Scales Using Lagrangian Hyper-refinement

  title={Cosmological Simulations of Quasar Fueling to Subparsec Scales Using Lagrangian Hyper-refinement},
  author={Daniel Angl{\'e}s-Alc{\'a}zar and Eliot Quataert and Philip F. Hopkins and Rachel S. Somerville and Christopher C. Hayward and Claude-Andr{\'e} Faucher-Gigu{\`e}re and Greg L. Bryan and Dus̆an Keres̆ and Lars E. Hernquist and James M. Stone},
  journal={The Astrophysical Journal},
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 central massive black hole. We model a multiphase interstellar medium including stellar feedback by supernovae, stellar winds, and radiation, and a hyper-Lagrangian refinement technique increasing the resolution dynamically approaching the black hole. We do not include black hole feedback. We show that the… 
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