Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-12-20
Astrophys.J. 580 (2002) 42-53
Astronomy and Astrophysics
Astrophysics
Submitted to ApJ, 41 pages
Scientific paper
10.1086/343031
We present predictions of the correlation between the Lyman-alpha forest absorption in quasar spectra and the mass within \sim 5 Mpc/h (comoving) of the line of sight, using fully hydrodynamic and hydro-PM numerical simulations of the cold dark matter model supported by present observations. The observed correlation based on galaxies and the Lya forest can be directly compared to our theoretical results, assuming that galaxies are linearly biased on large scales. Specifically, we predict the average value of the mass fluctuation,
Cen Renyue
McDonald Patrick
Miralda-Escude' Jordi
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