  We present the kinematic analysis of a sub-sample of 82 galaxies at
$\mathrm{0.75<z<1.2}$ from our new survey HR-COSMOS aimed to obtain the first
statistical study on the kinematics of star-forming galaxies in the treasury
COSMOS field at $\mathrm{0<z<1.2}$. We observed $\sim\,$766 emission line
galaxies using the multi-slit spectrograph ESO-VLT/VIMOS in high-resolution
mode (R=2500). To better extract galaxy kinematics, VIMOS spectral slits have
been carefully tilted along the major axis orientation of the galaxies, making
use of the position angle measurements from the high spatial resolution ACS/HST
COSMOS images. We constrained the kinematics of the sub-sample at $0.75<z<1.2$
by creating high resolution semi-analytical models. We established the
stellar-mass Tully-Fisher relation at $z\simeq 0.9$ with high-quality stellar
mass measurements derived using the latest COSMOS photometric catalog, which
includes the latest data releases of UltraVISTA and Spitzer. In doubling the
sample at these redshifts compared with the literature, we estimated the
relation without setting its slope, and found it consistent with previous
studies in other deep extragalactic fields assuming no significant evolution of
the relation with redshift at $z\lesssim1$. We computed dynamical masses within
the radius R$_{2.2}$ and found a median stellar-to-dynamical mass fraction
equal to 0.2 (assuming Chabrier IMF), which implies a contribution of gas and
dark matter masses of 80% of the total mass within R$_{2.2}$, in agreement with
recent integral field spectroscopy surveys. We find no dependence of the
stellar-mass Tully-Fisher relation with environment probing up to group scale
masses. This study shows that multi-slit galaxy surveys remain a powerful tool
to derive kinematics for large numbers of galaxies at both high and low
redshift.
