2012MNRAS.422..469S

We present time-resolved spectroscopy of the eclipsing, short-period cataclysmic variable CTCV J1300-3052. Using absorption features from the secondary star, we determine the radial velocity semi-amplitude of the secondary star to be K₂= 378±6 km/s, and its projected rotational velocity to be v sin i= 125±7 km/s. Using these parameters and Monte Carlo techniques, we obtain masses of M₁= 0.79±0.05 M_☉ for the white dwarf primary and M₂= 0.198±0.029 M_☉for the M-type secondary star. These parameters are found to be in good agreement with previous mass determinations found via photometric fitting techniques, supporting the accuracy and validity of photometric mass determinations in short-period CVs.