Spectroscopic survey of WISE-selected sources

We observed 762 targets in 10 disjoint fields centered on ultraluminous infrared galaxy candidates using DEIMOS on Keck II. We find 0.30+/-0.02 galaxies arcmin^-2^ with a median redshift of z=0.33+/-0.01 for the sample with W1>=120{mu}Jy.

The foreground stellar densities in our survey range from 0.23+/-0.07arcmin^-2^ to 1.1+/-0.1arcmin^-2^ for the same sample. We obtained spectra that produced science grade redshifts for >=90% of our targets for sources with W1 flux >=120{mu}Jy that also had an i-band flux >=18{mu}Jy. We used this for targeting very preliminary data reductions available to the team in 2010 August.