Energy and Thermal Physics

The Yarkovsky Effect

Stories from Physics for 11-14 14-16 IOP RESOURCES

The differential heating of the sides of an asteroid by sunlight can lead to the exertion of a small thrust force, a phenomenon known as the Yarkovsky effect. In September 2016, NASA launched a spacecraft, OSIRIS-REx, to intercept and collect samples from the asteroid Bennu. It successfully landed on the asteroid in October 2020. In addition to collecting a sample of the asteroid and returning it to Earth, OSIRIS-REx will investigate the Yarkovsky effect on Bennu in order to develop potential techniques to deflect asteroids that are on a collision course with the Earth.


appears in the relation ΔEΔt>ℏ/2 ΔQ=mcΔθ E=hf E ∝ A^2
has the special case Photon Energy
is used in analyses relating to Emission/Absorption Spectra Phase Change
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