Near-Infrared Coronal Line Observations of Dwarf Galaxies hosting
  AGN-driven Outflows
  We have obtained Keck NIR spectroscopy of a sample of nine M$_\star$ $<$
10$^{10}$ M$_\odot$ dwarf galaxies to confirm AGN activity and the presence of
galaxy-wide, AGN-driven outflows through coronal line (CL) emission. We find
strong CL detections in 5/9 galaxies (55$\%$) with line ratios incompatible
with shocks, confirming the presence of AGN in these galaxies. Similar CL
detection rates are found in larger samples of more massive galaxies hosting
type 1 and 2 AGN. We investigate the connection between the CLs and galaxy-wide
outflows by analyzing the kinematics of the CL region, as well as the scaling
of gas velocity with ionization potential of different CLs. In addition, using
complementary Keck KCWI observations of these objects, we find that the outflow
velocities measured in [Si VI] are generally faster than those seen in [O III].
The galaxies with the fastest outflows seen in [O III] also have the highest
[Si VI] luminosity. The lack of $J$-band CN absorption features, which are
often associated with younger stellar populations, provides further evidence
that these outflows are driven by AGN in low mass galaxies.
