Galaxy And Mass Assembly (GAMA): the G02 field, Herschel-ATLAS target
  selection and Data Release 3
  We describe data release 3 (DR3) of the Galaxy And Mass Assembly (GAMA)
survey. The GAMA survey is a spectroscopic redshift and multi-wavelength
photometric survey in three equatorial regions each of 60.0 deg^2 (G09, G12,
G15), and two southern regions of 55.7 deg^2 (G02) and 50.6 deg^2 (G23). DR3
consists of: the first release of data covering the G02 region and of data on
H-ATLAS sources in the equatorial regions; and updates to data on sources
released in DR2. DR3 includes 154809 sources with secure redshifts across four
regions. A subset of the G02 region is 95.5% redshift complete to r<19.8 over
an area of 19.5 deg^2, with 20086 galaxy redshifts, that overlaps substantially
with the XXL survey (X-ray) and VIPERS (redshift survey). In the equatorial
regions, the main survey has even higher completeness (98.5%), and spectra for
about 75% of H-ATLAS filler targets were also obtained. This filler sample
extends spectroscopic redshifts, for probable optical counterparts to H-ATLAS
sub-mm sources, to 0.8 mag deeper (r<20.6) than the GAMA main survey. There are
25814 galaxy redshifts for H-ATLAS sources from the GAMA main or filler
surveys. GAMA DR3 is available at the survey website
(www.gama-survey.org/dr3/).
