Phase-space diagram of the galaxies identified with ALMA and of the other group members associated with quasar absorbers. The vertical axis reports the difference between the velocity shift from the absorption line center, measured from the τ₅₀ wavelength (Δv(τ₅₀)), and half of the Δv₉₀ of the absorption profile. Negative values indicate that the galaxy systemic is near to the center of the absorption profile, while positive ones correspond to galaxies at the redshift of which no absorption is detected. The horizontal axis shows the galaxy impact parameters normalized by their virial radius (R_vir). The markers are color-coded as in Fig. 6.