Surface density, radial velocity, azimuthal velocity, eccentricity of the particles’ orbits, and scale height varying with radius for models 30-1.0-0.16 and 30-0.1-0.16 in the leftmost panels, 30-1.0-0.16 and 84-1.0-0.16 for the middle panels, and 30-1.0-0.33 and 30-1.0-0.50 for the rightmost panels. The colors of the lines indicate the wedges along which the quantities are calculated, following Fig. 2: yellow is the wedge pointing to the secondary, blue is the wedge in the opposite direction, and green includes part of the stronger spiral arm. The dotted gray lines show the position of the secondary for the models compared in each column.