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We present new observations of the large-scale radio emission surrounding thelenticular galaxy NGC~1534 with the Australia Telescope Compact Array andMurchison Widefield Array. We find no significant compact emission from thenucleus of NGC 1534 to suggest an active core, and instead find low-power radioemission tracing its star-formation history with a radio-derived star-formationrate of $0.38\pm0.03$ M$_\odot$ yr$^{-1}$. The spectral energy distribution ofthe extended emission is well-fit by a continuous injection model with an 'off'component, consistent with dead radio galaxies. We find the spectral age of theemission to be 203 Myr, having been active for 44 Myr. Polarimetric analysispoints to both a large-scale magneto-ionic Galactic foreground at $+33$ radm$^{-2}$ and a component associated with the northern lobe of the radioemission at $-153$ rad m$^{-2}$. The magnetic field of the northern lobe showsan unusual circular pattern of unknown origin. While such remnant sources arerare, combined low- and high-frequency radio surveys with highsurface-brightness sensitivities are expected to greatly increase their numbersin the coming decade, and combined with new optical and infrared surveys shouldprovide a wealth of information on the hosts of the emission.

The remnant radio galaxy associated with NGC 1534