Spitzer Space Telescope - Directors Discretionary Time Proposal #473


The Physics of High Redshift Galaxies: Star Formation, Chemistry
and Gas Flows

Principal Investigator: Dawn Erb
           Institution: Harvard-SAO

     Technical Contact: Dawn Erb, Harvard-SAO

Science Category: high-z galaxies (z>0.5)
 Observing Modes: IracMap 
  Hours Approved: 11.0

Abstract:
I will use rest-frame UV and optical spectra, models of chemical
evolution and star formation, and stellar mass and age determinations 
from ground-based and Spitzer photometry to constrain the properties 
of galaxies at z~2-3, the peak era of star formation and black hole 
accretion in the universe. I will focus on understanding the youngest 
and lowest mass galaxies, and on refining measurements of chemical 
abundances and using them to constrain the magnitudes of galactic 
inflows and outflows.