Abstract:We discuss how the conditions at high redshift differ from those at low
redshift, and what the impact is on the galaxy population. We focus in
particular on the role of gaseous dissipation and its impact on sustaining high
star formation rates as well as on driving star-bursts in mergers. Gas
accretion onto galaxies at high redshifts occurs on a halo dynamical time
allowing for very efficiently sustained star formation. In addition cold
accretion flows are able to drive turbulence in high redshift disks at the… Show more
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