We present new Australia Telescope Compact Array ( ATCA ) radio-continuum and XMM-Newton / Chandra X-ray Observatory ( CXO ) observations of the unusual supernova remnant HFPK 334 in the Small Magellanic Cloud ( SMC ) .
The remnant follows a shell type morphology in the radio-continuum and has a size of \sim 20 pc at the SMC distance . The X-ray morphology is similar , however , we detect a prominent point source close to the center of the SNR exhibiting a spectrum with a best fit powerlaw with a photon index of \Gamma = 2.7 \pm 0.5 . This central point source is most likely a background object and can not be directly associated with the remnant .
The high temperature , nonequilibrium conditions in the diffuse region suggest that this gas has been recently shocked and point toward a younger SNR with an age of \lesssim 1800 years .
With an average radio spectral index of \alpha = -0.59 \pm 0.09 we find that an equipartition magnetic field for the remnant is \sim 90 \mu G , a value typical of younger SNRs in low-density environments .
Also , we report detection of scattered radio polarisation across the remnant at 20 cm , with a peak fractional polarisation level of 25 \pm 5 % .