2004ApJ...603L..13R

We have examined the stacked radio and X-ray emission from UV-selected galaxies spectroscopically confirmed to lie in the redshift range 1.5≲z≲3.0 in the Great Observatories Origins Deep Survey-North field to determine their average extinction and star formation rates (SFRs). The X-ray and radio data are obtained from the Chandra 2 Ms survey and the Very Large Array, respectively. There is a good agreement among the X-ray, radio, and dereddened UV estimates of the average SFR for our sample of z∼2 galaxies of ∼50 M_☉/yr, indicating that the locally calibrated SFR relations appear to be statistically valid in the redshift range 1.5≲z≲3.0. We find that UV-estimated SFRs (uncorrected for extinction) underestimate the bolometric SFRs as determined from the 2-10 keV X-ray luminosity by a factor of ∼4.5-5.0 for galaxies over a large range in redshift, 1.0≲z≲3.5.