IGRINS Near-IR High-Resolution Spectroscopy of Multiple Jets around
  LkH$\alpha$ 234
  We present the results of high-resolution near-IR spectroscopy toward the
multiple outflows around the Herbig Be star Lk{\Ha} 234 using the Immersion
Grating Infrared Spectrograph (IGRINS). Previous studies indicate that the
region around Lk{\Ha} 234 is complex, with several embedded YSOs and the
outflows associated with them. In simultaneous H$-$ and K$-$band spectra from
HH 167, we detected 5 {\FeII} and 14 H$_{2}$ emission lines. We revealed a new
{\FeII} jet driven by radio continuum source VLA 3B. Position-velocity diagrams
of H$_{2}$ 1$-$0 S(1) $\lambda$2.122 $\micron$ line show multiple velocity
peaks. The kinematics may be explained by a geometrical bow shock model. We
detected a component of H$_{2}$ emission at the systemic velocity (V$_{LSR}$
$=$ $-$10.2 {\kms}) along the whole slit in all slit positions, which may arise
from the ambient photodissociation region. Low-velocity gas dominates the
molecular hydrogen emission from knots A and B in HH 167, which is close to the
systemic velocity, {\FeII} emission lines are detected at farther from the
systemic velocity, at V$_{LSR}$ $=$ $-$100 $-$ $-$130 {\kms}. We infer that the
H$_{2}$ emission arises from shocked gas entrained by a high-velocity outflow.
Population diagrams of H$_{2}$ lines imply that the gas is thermalized at a
temperature of 2,500 $-$ 3,000 K and the emission results from shock
excitation.
