THE ORIGIN OF Ly α ABSORPTION SYSTEMS AT z > 1 — IMPLICATIONS FROM THE HUBBLE DEEP FIELD

The Hubble Deep Field images have provided us with a unique chance to relate statistical properties of high-redshift galaxies to statistical properties of Lyα absorption systems. Combining an empirical measure of the galaxy surface density versus redshift with an empirical measure of the gaseous extent of galaxies, we predict the number density of Ly… CONTINUE READING