Eccentricities (left) and velocity semi-amplitudes (right) of 10 000 Monte Carlo simulations performed to find the radial-velocity orbit of HD 43848. The bi-modal structure is clearly seen in both histograms. The final solution is found by considering only the lower eccentricity realisations, which is done by separating the distributions at  m s^-1 and correspondingly at ê ~ 0.78. The probability of obtaining a high- or low-eccentricity solution is calculated by counting the number of realisations above and below this threshold value and equals 77% and 23%, respectively.