Newly-Discovered Globular Clusters in NGC 147 and NGC 185 from PAndAS
  Using data from the Pan-Andromeda Archaeological Survey (PAndAS), we have
discovered four new globular clusters (GCs) associated with the M31 dwarf
elliptical (dE) satellites NGC 147 and NGC 185. Three of these are associated
with NGC 147 and one with NGC 185. All lie beyond the main optical boundaries
of the galaxies and are the most remote clusters yet known in these systems.
Radial velocities derived from low resolution spectra are used to argue that
the GCs are bound to the dwarfs and are not part of the M31 halo population.
Combining PAndAS with UKIRT/WFCAM data, we present the first homogeneous
optical and near-IR photometry for the entire GC systems of these dEs.
Colour-colour plots and published colour-metallicity relations are employed to
constrain GC ages and metallicities. It is demonstrated that the clusters are
in general metal poor ([Fe/H] < -1.25 dex), while the ages are more difficult
to constrain. The mean (V-I)$_0$ colours of the two GC systems are very similar
to those of the GC systems of dEs in the Virgo and Fornax clusters, as well as
the extended halo GC population in M31. The new clusters bring the GC specific
frequency (S_N) to ~9 in NGC 147 and ~5 in NGC 185, consistent with values
found for dEs of similar luminosity residing in a range of environments.
