PRIMUS

PRIMUS is the largest faint galaxy spectroscopic redshift survey taken to date. It is a spectroscopic survey to z=1 with 120,000 robust galaxy redshifts covering >9 sq. deg. of the sky, focusing on regions with deep Spitzer, optical, GALEX and X-ray data. Using a custom-built low-resolution prism on the IMACS instrument on the 6.5m Magellan/Baade telescope, we are able to obtain redshifts of faint galaxies 10x faster than comparable spectroscopic redshift surveys with a precision of dz/(1+z)<0.005. This technique is faster than photometric redshift surveys and provides more precise redshifts... PRIMUS is done taking data. We have released our redshift catalog and are writing science papers (arXiv Publications). Funding for PRIMUS is provided by NSF (AST-0607701, AST-0908246, AST-0908442, AST-0908354) and NASA (Spitzer-1356708, 08-ADP08-0019, NNX09AC95G).