Reverberation Mapping of PG 0934+013 with the Southern African Large
  Telescope
  We present the variability and time lag measurements of PG 0934+013 based on
a photometric and spectroscopic monitoring campaign over a two year period. We
obtained 46 epochs of data from the spectroscopic campaign, which was carried
out using the Southern African Large Telescope with $\sim$1 week cadence over
two sets of 4 month-long observing period, while we obtained 80 epochs of
\textit{B}-band imaging data using a few 1-m class telescopes. Due to the seven
month gap between the two observing periods, we separately measured the time
lags of broad emission lines including H$\beta$, by comparing the emission line
light curve with the \textit{B}-band continuum light curve using the
cross-correlation function techniques. We determined the H$\beta$ lag,
$\tau_{\rm cent} = 8.46^{+2.08}_{-2.14}$ days in the observed-frame based on
Year 2 data, while the time lag from Year 1 data was not reliably determined.
Using the rms spectrum of Year 2 data, we measured the \Hb\ line dispersion
\sigmaline = 668 $\pm$ 44 \kms\ after correcting for the spectral resolution.
Adopting a virial factor f = 4.47 from Woo et al. 2015, we determined the black
hole mass M$_{BH}$ = $3.13 ^{+0.91} _{-0.93} \times 10^{6}$ \msun based on the
\Hb\ time lag and velocity.
