Left: Orbital period shown against mass ratio (q) for simulated binary systems in the orbital period ranges that were used to correct for our observational biases. Solid black contour lines show the probability of detection at the 99, 90, 50, and 10% levels given the temporal baseline and typical uncertainties of the BLOeM data, where each grid point is the median of 10 000 simulated systems. The detection criteria used in these simulations are matched to those of the observations (i.e. Δv = 5 km s⁻¹ and σ = 4). The dashed coloured lines show the minimum allowed orbital period for three representative examples as a function of the mass ratio of the system. Right: Same simulations where the solid contour lines now show lines of constant semi-amplitude velocity on the 150, 100, 50, 25, and 10 km s⁻¹ levels.