Polarized emission (color) of the radio relic in Abell 1612, overlaid with total intensity contours. Vectors depict the polarization B–vectors, not corrected for Faraday rotation, with lengths representing the degree of polarization. Left: 8.35 GHz map. Total intensity contours are drawn at levels of [1, 2, 3, 4, 6, 8, 16] × 1.5 mJy/beam. A vector length of 1′ corresponds to 30% fractional polarization. The beam size is 90″ × 90″. Right: 4.85 GHz map. Total intensity contours are drawn at levels of [1, 2, 3, 4, 6, 8, 16] × 1.5 mJy/beam. A vector length of 1′ corresponds to 20% fractional polarization. The beam size is 159″ × 159″.