Thin layer of enhanced polarised radio emission surrounding the head of the mushroom, possibly caused by magnetic draping. The X-ray mushroom is outlined by the cyan lines obtained by applying wavelet filtering to a background- and point-source-subtracted XMM-Newton image in the 0.5−2 keV energy band, combining MOS and pn data. The intrinsic polarisation vectors are rotated by 90° to show the local orientation of the magnetic field. White contours are at (5, 10, 20, 40)×σ with local noise σ = 12 μJy beam⁻¹ and beam 15″ × 15″.