Astronomical School’s Report, 2015, Volume 11, Issue 2, Pages 135–138

https://doi.org/10.18372/2411-6602.11.2135
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UDC 523.4-327

The dependence of the YORP effect on an asteroid shape

Pyrohova U.V.1, Golubov O.A.1, 2

1Institute of Astronomy of Kharkiv National University
2V.N. Karazin Kharkiv National University

Abstract

In this paper we deal with the problem of analytic calculation of the YORP effect of an asteroid in terms of its shape. The calculations are made for spheroidal asteroids, whose shape slightly differs from a triaxial ellipsoid. We analytically describe a real asteroid as a triaxial ellipsoid perturbed with spherical harmonics. The results can be applied to predict the YORP torque for asteroids with specified shape, as well as to understand contribution of roughness on different scales to the YORP effect.

Keywords: asteroids; YORP effect

References

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