Stacked void-galaxy cross-correlation function in redshift space. Left: ξ^s(s_⊥, s_∥) in 2D (color scale with black contours) and its best-fit model from Eqs. (19) and (20) (white contours). Right: monopole (blue dots), quadrupole (red triangles) and hexadecapole (green wedges) of ξ^s(s_⊥, s_∥) and best-fit model (solid, dashed, dotted lines). The mean void redshift, , and effective radius, , of each redshift bin are indicated.