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We present new low-frequency ($\nu = 88$-216 MHz) observations of the complexmerging galaxy cluster Abell 3266. These new observations are taken with theMurchison Widefield Array (MWA) in its Phase II 'extended', long-baselineconfiguration, offering the highest-resolution low-frequency view of thecluster to date. We report on the detection of four steep spectrum ($\alpha\lesssim -1$ for $S_\nu \propto \nu^\alpha$) extended radio sources within thecluster. We confirm the detection of a $\sim 570$ kpc radio relic to the southof the cluster, and a possible bridge of emission connecting the relic to thecluster core. We also detect two new ultra-steep-spectrum ($\alpha \lesssim-1.7$) fossil plasma sources to the north and west of the cluster centrewithout associated compact radio emission. A previously detected radio galaxyin the cluster is also found to have a spectrally steepening tail withsteep-spectrum components highlighted by the MWA. We do not detect a giantradio halo in the cluster. After simulating a range of radio haloes at 216 MHzwe place upper limits on the radio luminosity corresponding to $\sim 7.2 \times10^{24}$ W Hz$^{-1}$ at 150 MHz assuming the expected 500 kpc radius, up to afactor 5 lower than expected from scaling relations. Why a giant radio halo isundetected in Abell 3266 is unclear - the timeline of the merger and overallmass of the system as determined by optical and X-ray studies suggest thefoundation for a hosting system.

The merging galaxy cluster Abell 3266 at low radio frequencies