Non-Voigt Lyalpha Absorption Line Profiles.

  title={Non-Voigt Lyalpha Absorption Line Profiles.},
  author={Outram and Carswell and Theuns},
  journal={The Astrophysical journal},
  volume={529 2},
Recent numerical simulations have lead to a paradigm shift in our understanding of the intergalactic medium and the loss of a physical justification for Voigt profile fitting of the Lyalpha forest. Many individual lines seen in simulated spectra have significant departures from the Voigt profile, yet could be well fitted by a blend of two or more such lines. We discuss the expected effect on the line profiles due to ongoing gravitational structure formation and Hubble expansion. We develop a… 

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