SQuIGG$\vec{L}$E Survey: Massive z$\sim$0.6 Post-Starburst Galaxies
  Exhibit Flat Age Gradients
  We present Gemini GMOS IFU observations of six massive ($M_\star\geq10^{11} \
M_\odot$) A-star dominated post-starburst galaxies at $z\sim0.6$. These
galaxies are a subsample of the SQuIGG$\vec{L}$E Survey, which selects
intermediate-redshift post-starbursts from the Sloan Digital Sky Survey
spectroscopic sample (DR14) with spectral shapes that indicate they have
recently shut off their primary epoch of star formation. Using $H\delta_A$
absorption as a proxy for stellar age, we constrain five of the galaxies to
have young ($\sim 600$ Myr) light-weighted ages at all radii and find that the
sample on average has flat age gradients. We examine the spatial distribution
of mass-weighted properties by fitting our profiles with a toy model including
a young, centrally concentrated burst superimposed on an older, extended
population. We find that galaxies with flat $H\delta_A$ profiles are
inconsistent with formation via a central secondary starburst. This implies
that the mechanism responsible for shutting off this dominant episode of star
formation must have done so uniformly throughout the galaxy.
