Binary Asteroid Evolution Under Tides and BYORP: Competing Timescales for a Kilometre-Scale Pair

This paper computes A computed study of tidal and radiative evolution of a binary asteroid, with a quantitative bound on any torsion-type correction. The headline results from the deposited calculation are: mean_motion = 1.47e-04; t_change_kyr_at_5cm_yr = 0; separation_km = 1.18. A computed study of tidal and radiative evolution of a binary asteroid, with a quantitative bound on any torsion-type correction. is examined against published small-body observations, and the size of any correction associated with a torsion-type density bound near 9.7 x 10^57 kilograms per cubic metre is evaluated explicitly; at small-body densities that correction is smaller than the classical quantities by more than fifty orders of magnitude and changes no result at the quoted precision. This study is simulated and computed from stated assumptions; it is not a measurement.