Object sizes of deuteron (green), $^{3}{\rm He}$ (blue) and $^{3}_{\Lambda}{\rm H}$ (red) obtained from experimental d/p, $^{3}{\rm He}$/p and $^{3}_{\Lambda}{\rm H}/\Lambda$ ratios using the corresponding coalescence formulae. The vertical bars represent the statistical uncertainty resulting from the measured yield ratio. The shaded boxes show the systematic uncertainties (e.g due to the uncertainties on the source size). The combined object size for each species is indicated by the dashed lines and the bands represents the corresponding uncertainties.