Relating Lyman alpha forest (GAS detections) to galaxies (STAR detections)
Survey of same space using both techniques
Transmission (inverse of absorption) vs distance from galaxy
SN may have an effect for several hundred kpc
Summary: learning about galaxy formation from high-z galaxies
How about formation of DISK galaxies?
They are lower in surface brightness
Need to get spectra to see rotational kinematics
Then you can play Tully-Fisher games
More spectra and rotation curves
Star formation history of universe
