Kinematics analysis of the UDF10-ID #1 galaxy. Panel a: MUSE white light image of the galaxy. Isophote contours are overplotted with black continuous lines. Panel b: HST F850LP image with the spatial coverage of the MUSE data cube (satisfying our spectral S/N rejection criterion) is indicated by the orange dashed contour. Panel c: fit of the central spectrum of the spatially binned sub-cube (black solid line) and its best fit from pPXF (red continuous line) is shown. The green points represent the fit residuals that are arbitrarily shifted along the vertical axis. The green shaded areas correspond to the masked regions (i.e. sky line residuals). Panels d–e: resolved stellar kinematics, respectively: the LOS velocity V_stellar (panel d) and the velocity dispersion σ_stellar (panel e) are shown. The scales of the colour scheme are indicated by the colour bars at the bottom of each panel. Panels f–g: resolved gas kinematics from the Balmer series of emission lines, respectively: the rotational velocity V_gas (panel f) and the velocity dispersion σ_gas (panel g) are shown. The scales of the colour scheme are indicated by the colour bars on top of each panel. The galaxy ID number, its redshift, and stellar mass are indicated above panel c.