Galaxy And Mass Assembly (GAMA): the Stellar Mass Budget by Galaxy Type
  We report an expanded sample of visual morphological classifications from the
Galaxy and Mass Assembly (GAMA) survey phase two, which now includes 7,556
objects (previously 3,727 in phase one). We define a local (z <0.06) sample and
classify galaxies into E, S0-Sa, SB0-SBa, Sab-Scd, SBab-SBcd, Sd-Irr, and
"little blue spheroid" types. Using these updated classifications, we derive
stellar mass function fits to individual galaxy populations divided both by
morphological class and more general spheroid- or disk-dominated categories
with a lower mass limit of log(Mstar/Msun) = 8 (one dex below earlier
morphological mass function determinations). We find that all individual
morphological classes and the combined spheroid-/bulge-dominated classes are
well described by single Schechter stellar mass function forms. We find that
the total stellar mass densities for individual galaxy populations and for the
entire galaxy population are bounded within our stellar mass limits and derive
an estimated total stellar mass density of rho_star = 2.5 x 10^8 Msun Mpc^-3
h_0.7, which corresponds to an approximately 4% fraction of baryons found in
stars. The mass contributions to this total stellar mass density by galaxies
that are dominated by spheroidal components (E and S0-Sa classes) and by disk
components (Sab-Scd and Sd-Irr classes) are approximately 70% and 30%,
respectively.
