Kinematics and Feedback in H II regions in the Dwarf Starburst Galaxy IC
  10
  We present a survey of the central region of the nearest starburst galaxy, IC
10, using the W. M. Keck Observatory Keck Cosmic Web Imager (KCWI) at high
spectral and spatial resolution. We map the central starburst of IC 10 to
sample the kinematic and ionization properties of the individual star-forming
regions. Using the low spectral resolution mode of KCWI we map the oxygen
abundance and with the high spectral resolution mode we identify 46 individual
H II regions. These H II regions have an average radius of 4.0 pc, star
formation rate $\sim1.3\times10^{-4}$ M$_\odot$ yr$^{-1}$, and velocity
dispersion $\sim$16 km s$^{-1}$. None of the H II regions appear to be
virialized ($\rm \alpha_{vir}>>1$), and, on average, they show evidence of
ongoing expansion. IC 10's H II regions are offset from the star forming region
size-luminosity scaling relationships, as well as Larson's Law that relates
size and velocity dispersion. We investigate the balance of inward and outward
pressure, $\rm P_{in}$ and $\rm P_{out}$, finding $\rm P_{out}>P_{in}$ in 89%
of H II regions, indicating feedback driven expansion even in these low mass H
II regions. We find warm gas pressure ($\rm P_{gas}$) provides the dominant
contribution to the outward pressure ($\rm P_{out}$). This counteracts the
inward pressure which is dominated by turbulence in the surrounding gas rather
than self-gravity. Five H II regions show evidence of outflows which are most
likely supported by either stellar winds (2 regions) or champagne flows (3
regions). These observations provide new insights into the state of the
star-forming regions in IC 10 and negative feedback from low mass clusters.
