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Fig. 5


Distribution of X-complex asteroids with 0.1 < pV < 0.3 of the inner main belt in the (a, 1∕D) space and that do not belong to the Baptistina asteroid family according to Nesvorný et al. (2015). Top panel: asteroids with sin i > 0.1 and e < 0.12. Objects represented by circles are Athor family members; the squares are planetesimals. Bottom panel: all the other asteroids that belong neither to Baptistina nor the core or halo of Athor. Those represented with circles are Zita family members. Squares are the planetesimals. The position of the overlapping J7:2 MMR and the M5:9 MMR is drawn with a vertical bar. The V shapes of the Hathor, Zita, and Baptistina families are plotted (but not the members of the Baptistina family). As discussed in Sect. 6, we define planetesimals as those asteroids that cannot be included into V shapes.

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