Modeling Lyman-\alpha\ Forest Cross-Correlations with LyMAS

Understand

We use the Ly-$\alpha$ Mass Association Scheme (LyMAS; Peirani et al.

• 2014) to predict cross-correlations at $z=2.5$ between dark matter halos and transmitted flux in the Ly-$\alpha$ forest, and compare to cross-correlations measured for quasars and damped Ly-$\alpha$ systems (DLAs) from the Baryon Oscillation Spectroscopic Survey (BOSS) by Font-Ribera et al.
• (2012, 2013).
• We calibrate LyMAS using Horizon-AGN hydrodynamical cosmological simulations of a $(100\ h^{-1}\ \mathrm{Mpc})^3$ comoving volume.