Pipe3D Stellar and Gaseous Velocity Dispersions for CALIFA Galaxies
  We present tables of velocity dispersions derived from CALIFA V1200 datacubes
using Pipe3D. Four different dispersions are extracted from emission (ionized
gas) or absorption (stellar) spectra, with two spatial apertures (5'' and
30''). Stellar and ionized gas dispersions are not interchangeable and we
determine their distinguishing features. We also compare these dispersions with
literature values and construct sample scaling relations to further assess
their applicability. We consider revised velocity-based scaling relations using
the virial velocity parameter S_K^2 = K V_rot^2 + sigma^2 constructed with each
of our dispersions. Our search for the strongest linear correlation between S_K
and i-band absolute magnitudes favors the common K ~ 0.5, though the range 0.3
- 0.8 is statistically acceptable. The reduction of scatter in our best stellar
mass-virial velocity relations over that of a classic luminosity-velocity
relation is minimal; this may however reflect the dominance of massive spirals
in our sample.
