Large Scale Structure of the Universe at high redshifts. M. Demianski , A. Doroshkevich and S.Gottloeber. LSS at small redshifts – luminous matter. Ly- forest-LSS in DM & barions. Three characteristics of absorber Redshift – z Width - b km/s Depth - N HI cm -2
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Redshift – z
Width - b km/s
Depth - NHIcm-2
P(b/<b>), P(NHI/<NHI>), P(dsep/<dsep>)
<NHI> ~(1+z)2 and <dsep>~(1+z)-2
all structure properties are determined by
the initial power spectrum.
Lbox=100 h-1Mpc, Np=(256)3 , Lcell=0.4Mpc
High density clouds,
L~ (1+z)1/4, w~ (1+z)1/2, h~(1+z)1/2
Low density clouds,
Cores and envelopes
of earlier galaxies (~20 000 LBG)
stars or galaxies
systems – bubbles ~2Mpc
Giavalisco et al. 2004, GOODS,
(composition, masses, stability).