4.86-GHz VLA-A map. Peak intensity is 211 mJy beam⁻¹, lowest contour levels at 3σ rms noise level, 0.6 mJy beam⁻¹. Further contour levels increase by a factor of two. Beam size is 0.″43 × 0.″41 at a position angle of − 39°. The plus sign indicates the position of the faint optical source, SDSS J132303.03+294126.4. The cross indicates the position of the infrared source WISE J132303.04+294126.7 associated with that optical source. The positional accuracies of these measurements are much smaller than their representative symbols.