The SAMI Galaxy Survey: instrument specification and target selection
  The SAMI Galaxy Survey will observe 3400 galaxies with the Sydney-AAO
Multi-object Integral-field spectrograph (SAMI) on the Anglo-Australian
Telescope (AAT) in a 3-year survey which began in 2013. We present the
throughput of the SAMI system, the science basis and specifications for the
target selection, the survey observation plan and the combined properties of
the selected galaxies. The survey includes four volume limited galaxy samples
based on cuts in a proxy for stellar mass, along with low-stellar mass dwarf
galaxies all selected from the Galaxy And Mass Assembly (GAMA) survey. The GAMA
regions were selected because of the vast array of ancillary data available,
including ultraviolet through to radio bands. These fields are on the celestial
equator at 9, 12, and 14.5 hours, and cover a total of 144 square degrees (in
GAMA-I). Higher density environments are also included with the addition of
eight clusters. The clusters have spectroscopy from 2dFGRS and SDSS and
photometry in regions covered by the Sloan Digital Sky Survey (SDSS) and/or VLT
Survey Telescope/ATLAS. The aim is to cover a broad range in stellar mass and
environment, and therefore the primary survey targets cover redshifts 0.004 < z
< 0.095, magnitudes r$_{pet}$ < 19.4, stellar masses $10^{7} - 10^{12}$
M$_{sol}$, and environments from isolated field galaxies through groups to
clusters of $10^{15}$ M$_{sol}$.
