Figure 3 : Spin-modulated polarization.

From: Polarimetric evidence of a white dwarf pulsar in the binary system AR Scorpii

Figure 3

The panels show the spin-phase-folded (into 30 bins per cycle) red-band (OG 570 filter) variations for total intensity (I), degree of linear polarization (p), position angle (θ) and degree of circular polarization (v) on the 14/15 (left panels) and 15/16 March 2016 (right panels), respectively. Two cycles are shown for clarity. Error bars are 1σ.