(a) V_pec as a function of the fit_companion_mass. The NS-like zone, transition zone, and BH-like zone are, respectively, indicated by blue squares, orange squares, and red squares. (b) V_pec as a function of R_NUV. (c) V_pec as a function of ﹩| Z{| }_{{\rm{\max }}}﹩. In all panels, the horizontal black dashed line marks V_pec = 100 km s⁻¹, above which sources are considered to be probably accelerated by supernova natal kicks. For the NS-like zone, transition zone, and BH-like zone, there are 123; 68; and 25 systems that satisfy this criterion, respectively.