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Didymos’s Reshaping Scale Revealed by Detection of Its Spin Slow-down

  • Authors: Masatoshi Hirabayashi, Harrison F. Agrusa, Petr Pravec

Masatoshi Hirabayashi et al 2026 The Planetary Science Journal 7 .

  • Provider: AAS Journals

Caption: Figure 4.

Thickness change at the equator after spin-driven reshaping (Modification II). This quantity is equivalent to Δtr = (η − 1)χ(a0 + b0)/2. The contour plot shows Δtr in meters as a function of ejecta mass and speed. Positive values indicate that the axis on the equatorial plane widens owing to the described reshaping process.

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