Spectroscopic confirmation of the low-latitude object FSR 1716 as an old
  globular cluster
  Star clusters are invaluable tracers of the Galactic components and the
discovery and characterization of low-mass stellar systems can be used to
appraise their prevailing disruption mechanisms and time scales. However, owing
to the significant foreground contamination, high extinction, and still
uncharted interfaces of the underlying Milky Way components, objects at low
Galactic latitudes are notoriously difficult to characterize. Here, we present
the first spectroscopic campaign to identify the chemodynamical properties of
the low-latitude star cluster FSR 1716. While its photometric age and distance
are far from settled, the presence of RR Lyrae variables indicates a rather old
cluster variety. Using medium-resolution (R$\sim$10600) calcium triplet (CaT)
spectroscopy obtained with the wide-field multi-fibre AAOmega instrument, we
identified six member candidates with a mean velocity of $-30$ km s$^{-1}$ and
a velocity dispersion of 2.5$\pm$0.9 km s$^{-1}$. The latter value implies a
dynamic mass of $\sim$1.3$\times$10$^4$ M$_{\odot}$, typical of a low-mass
globular cluster. Combined with our derived CaT metallicity of $-1.38\pm0.20$
dex, this object is finally confirmed as an old, metal-poor globular cluster.
