Simulating gas kinematic studies of high-redshift galaxies with the
  HARMONI Integral Field Spectrograph
  We present simulated observations of gas kinematics in galaxies formed in 10
pc resolution cosmological simulations with the hydrodynamical + N-body code
RAMSES, using the new RAMSES2HSIM pipeline with the simulated observing
pipeline (HSIM) for the ELT HARMONI IFU spectrograph. We post-process the
galaxy's gas kinematics and H{\alpha} line emission for each simulation cell,
and integrate the emission to produce an extinction-corrected input cube. We
then simulate observations of the input cube with HARMONI, for a range of
exposure times, spatial sampling, and spectral resolution. We analyze the mock
observations to recover galaxy properties such as its kinematics and compare
with the known simulation values. We investigate the cause of biases between
the 'real' and 'observed' kinematic values, demonstrating the sensitivity of
the inferred rotation curve to knowledge of the instrument's point spread
function.
