(Top) Gray scale and contour PV maps of the Hα emission line at PAs −25° and +65°. The contours represent increasing intensity following the color code: black, white, red, green, yellow, and cyan. The black contour is at ~5σ level from the background; the rest are arbitrary and have been chosen to show the spatio-kinematical structure of the brightest regions. (Bottom) Gray scale and contour PV maps of the He II·λ6560 emission line at PAs −25° and +65°. The contours are logarithmic and separated by a factor of two in linear intensity. The emission feature toward the right in the two panels is the Hα emission line. Otherwise, the markings are the same as in Fig. 4.