  In a global kinematical study of NGC 5055 using high resolution Fabry-Perot,
intriguing spectral line profiles have been observed in the center of the
galaxy. These profiles seem to indicate a rapidly rotating disk with a radius
near 365 pc and tilted 50 $\deg$ with respect to the major axis of the galaxy.
In the hypothesis of a massive dark object, a naive keplerian estimate gives a
mass around $10^7.2$ to $10^7.5 M_\odot$. The limited spectral domain of the
Fabry-Perot leaves some ambiguity on the exact movement and velocity of this
H$\alpha$ emission. 2-D spectroscopy with a larger spectral range (eg.: TIGRE,
OASIS) is thus required.
