A Reverberation-Based Black Hole Mass for MCG-06-30-15
  We present the results of a reverberation campaign targeting MGC-06-30-15.
Spectrophotometric monitoring and broad-band photometric monitoring over the
course of 4 months in the spring of 2012 allowed a determination of a time
delay in the broad H$\beta$ emission line of $\tau=5.3\pm1.8$ days in the rest
frame of the AGN. Combined with the width of the variable portion of the
emission line, we determine a black hole mass of $M_{\rm BH} = (1.6 \pm 0.4)
\times 10^6$ M$_{\odot}$. Both the H$\beta$ time delay and the black hole mass
are in good agreement with expectations from the $R_{\rm BLR}$-$L$ and $M_{\rm
BH}-\sigma_{\star}$ relationships for other reverberation-mapped AGNs. The
H$\beta$ time delay is also in good agreement with the relationship between
H$\beta$ and broad-band near-IR delays, in which the effective BLR size is
$\sim 4-5$ times smaller than the inner edge of the dust torus. Additionally,
the reverberation-based mass is in good agreement with estimates from the X-ray
power spectral density break scaling relationship, and with constraints based
on stellar kinematics derived from integral field spectroscopy of the inner
$\sim 0.5$ kpc of the galaxy.
