Observations (full line with light colors), fit (dotted lines), and convolved fit (dashed lines) of the azimuthal dependence of the polarized intensity, A(ϕ)/A₀, for RX J1604. The curves give means of the R band epoch (top), of the five selected epochs for the J band (middle), and the epoch of the H band observations (bottom). The R band profiles might be affected by polarimetric calibration errors (see Appendix A.4).