Below: HST Image of M82 in the visual with the H (1.65 micron) polarization vectors overlayed. Note the strong scattering halo surrounding the nucleus. Also note the effects of the dust lane in the West and to either side of the nucleus.
Middle: HST Image of Centarus A in the visual with the H (1.65 micron) Polarization overlayed. Note the very clear alignment of the magnetic field with the dust lane.
Bottom: Spitzer image of Centarus A (Keene et al.) with the H (1.65 micron) Polarization overlayed.