Image Details
Caption: Figure 9.
Modeling the dynamical evolution of the canonical Eulalia family with the center ac = 2.475 au. This solution used the bulk density ρ = 1.5 g cm−3, the surface thermal inertia Γ = 200 SI units, and the variable YORP timescale τ0 = 1 My. The best match to the data (left panel) is obtained for T = 965 My and v5 = 14 m s−1 (recall that the characteristic initial ejection velocity is vej(D) = v5 (5 km/D) in meters per second). The solution is similar to that shown in Figure 8. It shows degeneracy of the possible solution in the choice of the bulk density and the surface thermal inertia. Both ordinates are calibrated to the adopted family identification without correcting for its incompleteness.
© 2026. The Author(s). Published by the American Astronomical Society.