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The Lyman Alpha Forest in Hierarchical Cosmologies

M. Machacek, G. Bryan, P. Anninos, A. Meiksin, M. L. Norman, Y. Zhang

astro-pharXiv:astro-ph/9903073

Abstract

The comparison of quasar absorption spectra with numerically simulated spectra from hierarchical cosmological models of structure formation promises to be a valuable tool to discriminate among these models. We present simulation results for the column density, Doppler b parameter, and optical depth probability distributions for five popular cosmological models.

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