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Recent observations with the Murchison Widefield Array at 185~MHz haveserendipitously unveiled a heretofore unknown giant and relatively nearby ($z =0.0178$) radio galaxy associated with NGC\,1534. The diffuse emission presentedhere is the first indication that NGC\,1534 is one of a rare class of objects(along with NGC\,5128 and NGC\,612) in which a galaxy with a prominent dustlane hosts radio emission on scales of $\sim$700\,kpc. We present details ofthe radio emission along with a detailed comparison with other radio galaxieswith disks. NGC1534 is the lowest surface brightness radio galaxy known with anestimated scaled 1.4-GHz surface brightness of just 0.2\,mJy\,arcmin$^{-2}$.The radio lobes have one of the steepest spectral indices yet observed:$\alpha=-2.1\pm0.1$, and the core to lobe luminosity ratio is $<0.1$\%. Weestimate the space density of this low brightness (dying) phase of radio galaxyevolution as $7\times10^{-7}$\,Mpc$^{-3}$ and argue that normal AGN cannotspend more than 6\% of their lifetime in this phase if they all go through thesame cycle.

Serendipitous discovery of a dying Giant Radio Galaxy associated with NGC 1534, using the Murchison Widefield Array