Bian, Fuyan; Cai, Zheng; Fan, Xiaohui; Peirani, S; Frye, Brenda; McGreer, Ian; Prochaska, J. Xavier; Lau, Marie Wingyee; Tejos, Nicolas; Ho, Shirley; Schneider, D P
Modern cosmology predicts that a galaxy overdensity (e.g., protocluster) will be associated with a large intergalactic medium gas reservoir, which can be traced by Lyα forest absorption. We have undertaken a systematic study of the relation between Coherently Strong intergalactic Lyα Absorption systems (CoSLAs), which have the highest optical depth (τ) in the τ distribution, and mass overdensities on the scales of ~10–20 h −1 comoving Mpc. On such large scales, our cosmological simulations show...[Show more]
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