The nuclear region of NGC 613 -- II. Kinematics and stellar archaeology
  In this work, we continue the study of the central region of NGC 613 by da
Silva et al. (2020), by analysing the stellar and gas kinematics and the
stellar archaeology in optical and near-infrared data cubes. The high spatial
resolution of the Gemini Multi-Object Spectrograph (GMOS) data cube allowed the
detection, using spectral synthesis methods, of an inner circumnuclear ring,
with a radius of $\sim$ 1 arcsec, composed of $\sim$ 10$^9$-yr stellar
populations. Such a ring is located between the nucleus and the circumnuclear
ring composed by H II regions detected in previous works. Besides that, there
is a stellar rotation around the nucleus and the rings follow the same
direction of rotation with different velocities. The intensity-weighted average
stellar velocity dispersion at the centre is 92 $\pm$ 3 km s$^{-1}$. Three
distinct gas outflow components were detected. The direction of the outflow
observed with the H $\alpha$ emission line is compatible with the direction of
the previously observed radio jet. The direction of one of the outflows
detected in the [O III]$\lambda$5007 emission coincides with the axis of the
ionization cone. There is no difference regarding the stellar populations and
the stellar kinematics along the double stellar emission, probably separated by
a dust lane as mentioned in Paper I, confirming that they are part of the same
structure.
