Shape model and rotation acceleration of (1685) Toro and (85989) 1999 JD6 from optical observations

Jun Tian, Haibin Zhao, Bin Li

The Yarkovsky-O'Keefe-Radzievskii-Paddack (YORP) effect is a net torque caused by solar radiation directly reflected and thermally re-emitted from the surface of small asteroids an…