On the Environmental Dependence of Galaxy Properties Established by the Initial Cosmological Conditions

  title={On the Environmental Dependence of Galaxy Properties Established by the Initial Cosmological Conditions},
  author={Jounghun Lee},
  journal={The Astrophysical Journal},
  • Jounghun Lee
  • Published 3 April 2006
  • Physics
  • The Astrophysical Journal
We study theoretically how the initial cosmological conditions establish the dependence of galaxy properties on the environment. First we adopt the linear tidal torque theory, according to which the angular momentum of a protogalaxy is generated to first order by the misalignment between the protogalaxy's inertia tensor and the local tidal tensor. Then we quantify analytically the degree of misalignment between the two tensors and show quantitatively that it increases as the density of the… 

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