Relation between remnant, CO-core, and pre-collapse masses derived from the helium-star models of Aguilera-Dena et al. (2022) using the semi-analytic explosion models of Müller et al. (2016) as updated in Mandel & Müller (2020). The scatter plot illustrates the predictions of the aforementioned models for different initial metallicities (Z = 0.01, 0.015, 0.02 shown in brown, orange, and green, respectively). Lines indicate the predictions of Fryer et al. (2012) and their variation with metallicity. Horizontal strips show the inferred component masses of GW190814. As can be seen, detailed models predict a much broader rage of possible progenitors for the low-mass component compared to standard BPS prescriptions. Notably, two CO cores of equal mass (∼24 M_⊙) may reproduce both GW190814 components.