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We examine the new Galactic supernova remnant (SNR) candidate, G23.11+0.18,as seen by the Murchison Widefield Array (MWA) radio telescope. We describe themorphology of the candidate and find a spectral index of -0.63+/-0.05 in the70-170MHz domain. A coincident TeV gamma-ray detection in High-EnergyStereoscopic System (HESS) data supports the SNR nature of G23.11+0.18 andsuggests that G23.11+0.18 is accelerating particles beyond TeV energies, thusmaking this object a promising new cosmic ray hadron source candidate. Theremnant cannot be seen in current optical, infrared and X-ray data-sets. We dofind, however, a dip in CO-traced molecular gas at a line-of-sight velocity of~85 km/s, suggesting the existence of a G23.11+0.18 progenitor wind-blownbubble. Furthermore, the discovery of molecular gas clumps at a neighbouringvelocity towards HESS J1832-085 adheres to the notion that a hadronic gamma-rayproduction mechanism is plausible towards the north of the remnant. Based onthese morphological arguments, we propose an interstellar medium associationfor G23.11+0.18 at a kinematic distance of 4.6+/-0.8 kpc.

A Supernova Remnant Counterpart for HESS J1832-085