Correlation among the star magnetic dipole μ (in Gauss cm³ units) estimated with different methods (unrelated to the accretion theory) and a combination of stellar parameters P^7∕3 R (P in s and R in units of 10⁶ cm) at the observationally determined luminosity at which the outburst light curves shows a knee or a drop (L_min in erg s⁻¹). We indicated LMXBs with red triangles, HMXBs with green squares, white dwarfs in intermediate polars with blue dots, and YSOs with cyan stars. The continuous line represents the best fit power law relation and separates the region where unimpeded matter accretion onto the star surface takes place from the region where it is halted (partially or completely) by the propeller mechanism.