  HESS J1745-303 is an extended, unidentified VHE (very high energy) gamma-ray
source discovered using HESS in the Galactic Plane Survey. Since no obvious
counterpart has previously been found in longer-wavelength data, the processes
that power the VHE emission are not well understood. Combining the latest VHE
data with recent XMM-Newton observations and a variety of source catalogs and
lower-energy survey data, we attempt to match (from an energetic and positional
standpoint) the various parts of the emission of HESS J1745-303 with possible
candidates. Though no single counterpart is found to fully explain the VHE
emission, we postulate that at least a fraction of the VHE source may be
explained by a supernova-remnant/molecular-cloud association and/or a
high-spin-down-flux pulsar.
