Gas disappears as z approaches zero
Estimates of mass density of HI
How can we have neutral gas clouds with ionizing radiation?
Bigger than a breadbox ........
UV spectra allow us to study absorbers at low z
Dont find galaxies associated with all the low column-density clouds.......
Use of hydro simulations to help
Good match to observations so far
The nature of high-redshift Lyman break galaxies
Use of a z=0.37 cluster as a telescope
Timescale of enrichment by different SNe
An early stage of formation of a bulge or elliptical
