The Assembly History of Disk Galaxies: II. Probing the Emerging
  Tully-Fisher Relation During 1<z<1.7
  Through extended integrations using the recently-installed deep depletion CCD
on the red arm of the Keck I Low Resolution Imaging Spectrograph, we present
new measurements of the resolved spectra of 70 morphologically-selected
star-forming galaxies with i_AB<24.1 in the redshift range 1<z<1.7. Using the
formalism introduced in Paper I of this series and available HST ACS images, we
successfully recover rotation curves using the extended emission line
distribution of [O II] 3727 A to 2.2 times the disk scale radius for a sample
of 42 galaxies. Combining these measures with stellar masses derived from HST
and ground-based near-infrared photometry enables us to construct the stellar
mass Tully-Fisher relation in the time interval between the well-constructed
relation defined at z~1 in Paper I and the growing body of resolved dynamics
probed with integral field unit spectrographs at z>2. Remarkably, we find a
well-defined Tully-Fisher relation with up to 60% increase in scatter and
stellar mass zero-point shift constraint of 0.02+/-0.02 dex since z~1.7,
compared to the local relation. Although our sample is incomplete in terms of
either a fixed stellar mass or star formation rate limit, we discuss the
implications that typical star-forming disk galaxies evolve to arrive on a
well-defined Tully-Fisher relation within a surprisingly short period of cosmic
history.
