Radiative Spin-up and Spin-down of Small
โ
David Parry Rubincam
๐
Article
๐
2000
๐
Elsevier Science
๐
English
โ 116 KB
The Yarkovsky-O'Keefe-Radzievskii-Paddack (YORP) effect may spin up or spin down 5-km-radius asteroids on a 10 8 -year timescale. Smaller asteroids spin up or down even faster due to the radius-squared dependence of the YORP timescale. The mechanism is the absorption of sunlight and its re-emission