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Formation of Moons and Equatorial Ridge around Top-shaped Asteroids after Surface Landslide

  • Authors: Ryuki Hyodo, Keisuke Sugiura

Ryuki Hyodo and Keisuke Sugiura 2022 The Astrophysical Journal Letters 937 .

  • Provider: AAS Journals

Caption: Figure 4.

Evolutions of the disk mass (left panel; not including the mass of the largest moons) and the masses of the largest three moons (right panel). At around t ∼ 1 × 105 s with a time interval of Δt ∼ 104 s, the landslide occurs and a particle disk is formed (left panel). The disk spreads and starts to form gravitational clumps with masses larger than ∼ 0.001M c at t ∼ 5.5 × 105 s, where M c is the mass of the central primary. Two large moons are formed by the end of our simulations (t = 25 × 105 s; ∼700 hr).

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