Distribution of BHNS binaries in our population on the NS mass versus BH mass plane, restricted to events for which the mass m_out remaining outside the remnant is larger than zero (Krüger & Foucart 2020, Eq. (9)), the fundamental condition for an EM emission. In each panel, the red shaded regions contain 50%, 90%, and 99% of the binaries (darker to lighter shades). Upper panels assume the SFHo EoS, while lower panels assume the DD2 EoS. Left-hand panels assume all BH spins are negligible, while right-hand panels assume uniformly distributed BH spin parameters in the interval [0, 0.5].