Figure 4 : Stokes parameters Q, U and polarized flux variations over spin period.

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

Figure 4

Spin-phase-folded Stokes Q and U parameters (upper panels) and total linearly polarized flux (lower panels) for the red band (570–900 nm) are shown for the two nights 14 and 15 March 2016. The migration of the Stokes Q and U amplitude pairs is shown, plotted every 3 s, and 40 points are plotted per spin cycle. Points are colour-coded as in the average phase-folded linearly polarized flux plots. The Q, U pairs follow anticlockwise trajectories.