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Abell 1033: Radio halo and gently reenergized tail at 54 MHz
Context. Abell 1033 is a merging galaxy cluster of moderate mass ( M 500 = 3.24 × 10 14 M ⊙ ). It hosts a broad variety of diffuse radio sources that are linked to different astrophysical phenomena. The most peculiar phenomenon is an elongated feature with an ultra-steep spectrum …