[Ce/Fe] abundances as a function of different orbital and stellar properties for ellipsoidal candidates with available measurements. The top row shows [Ce/Fe] against the orbital period (P_VR from Gaia FPR, left panel), GSP-Spec calibrated [M/H], and [α/Fe] (middle and right panel, respectively). The bottom row shows the abundance of Cerium as a function of the mass of the primary star ℳ₁ (left panel), the minimum mass of the secondary ℳ_2, min (middle panel), and the mass ratio q (right panel). In all the panels, only ellipsoidal binaries with good quality flags for the extinction are included (mint circles). Stars following a cut in the [Ce/Fe] and [M/H] quality flags (see the main text) are shown as purple circles. For comparison, Ba stars from Jorissen et al. (2019) having orbital periods of ≤1000 days are included as magenta diamonds and arrows (when their [Ce/Fe] abundance is larger than 1.2 dex).