ATCA Stokes I light curves from Fig. 1 folded with the orbital period of HIP 67522 b (transit midtime set to phase 0). Colored downward arrows indicate non-detections in a 1 h interval of a run with a significant source detection in the integrated image. Gray triangles indicate that the entire observing run yielded a non-detection. Dashed gray lines mark the quadratures of HIP 67522 b. The Stokes I emission does not show any variability in phase with the planet’s orbit. Error bars indicate 1 – σ RMS noise.