A Census of Star-Forming Galaxies at z = 1-3 in the Subaru Deep Field
  Several UV and near-infrared color selection methods have identified galaxies
at z = 1-3. Since each method suffers from selection biases, we have applied
three leading techniques (Lyman break, BX/BM, and BzK selection) simultaneously
in the Subaru Deep Field. This field has reliable ({\Delta}z/(1 + z) =
0.02--0.09) photometric redshifts for ~53,000 galaxies from 20 bands
(1500{\AA}--2.2{\mu}m). The BzK, LBG, and BX/BM samples suffer contamination
from z<1 interlopers of 6%, 8%, and 20%, respectively. Around the redshifts
where it is most sensitive (z~1.9 for star-forming BzK, z~1.8 for z~2 LBGs,
z~1.6 for BM, and z~2.3 for BX), each technique finds 60-80% of the census of
the three methods. In addition, each of the color techniques shares 75-96% of
its galaxies with another method, which is consistent with previous studies
that adopt identical criteria on magnitudes and colors. Combining the three
samples gives a comprehensive census that includes ~90% of z-phot = 1-3
galaxies, using standard magnitude limits similar to previous studies. In fact,
we find that among z = 1-2.5 galaxies in the color selection census, 81-90% of
them can be selected by just combining the BzK selection with one of the UV
techniques (z~2 LBG or BX and BM). The average galaxy stellar mass, reddening
and SFRs all decrease systematically from the sBzK population to the LBGs, and
to the BX/BMs. The combined color selections yield a total cosmic SFR density
of 0.18 $\pm$ 0.03 M_sun yr^{-1} Mpc^{-3} for K_AB <= 24. We find that 65% of
the star formation is in galaxies with E(B-V) > 0.25 mag, even though they are
only one-fourth of the census by number.
