Fig. 2: Delivery pathways and generations over time for New Polana. | Nature Communications

Fig. 2: Delivery pathways and generations over time for New Polana.

From: Numerical simulations suggest asteroids (101955) Bennu and (162173) Ryugu are likely second or later generation rubble piles

Fig. 2

Delivery of bodies from the New Polana family with family SFD = −4 and second largest fragment diameter = 0.4 diameter of largest remnant and a 100 km parent body. a shows the relative number of simulated asteroids delivered by the J7:2M5:9 in orange and ν6 resonance in navy over time. b shows the delivery of 1st, 2nd, 3rd and 4th generation fragments over time in navy, green, blue and purple respectively and (c) shows the same with all later generation fragments as Nth generation in green. The crossover time for this simulation is at 450 Myr, visible in (c) where Nth generation line crosses the 1st generation line. T = 0 Myr is the time of family formation.

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