V-shape of the Tirela/Klumpkea family members retrieved from this work. Left panel: distribution in the (a, 1/D) plane of the family members identified from Gaia spectra (in blue). Red crosses are resonant objects, while objects circled in black on the outer side are excluded from the family for their distance from the V-shape. The only excluded object on the left is rejected by the V-shape fit procedure. The two black lines are the fitted V-shape for N = 13 (see Fig. 11). The numbers mark the positions of (1040) Klumpkea and (1400) Tirela. Right panel: distribution in the (a, 1/D) plane of Tirela/Klumpkea members retrieved from Gaia observations. Blue points are objects in common between this work and the HCM, while red stars are objects that are not linked by the HCM.