Journal Article

Yarkovsky–O'Keefe–Radzievskii–Paddack effect with anisotropic radiation

S. Breiter and D. Vokrouhlický

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 410, issue 4, pages 2807-2816
Published in print February 2011 | ISSN: 0035-8711
Published online January 2011 | e-ISSN: 1365-2966 | DOI:
Yarkovsky–O'Keefe–Radzievskii–Paddack effect with anisotropic radiation

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In this paper, we study the influence of optical scattering and thermal radiation models on the Yarkovsky–O'Keefe–Radzievskii–Paddack (YORP) effect. The Lambertian formulation is compared with the scattering and emission laws and Lommel–Seeliger reflection. Although the form of the reflectivity function strongly influences the mean torques because of scattering or thermal radiation alone, their combined contribution to the rotation period YORP effect is not very different from the standard Lambertian values. For higher albedo values, the differences between the Hapke and Lambert models become significant for the YORP effect in attitude.

Keywords: radiation mechanisms: thermal; methods: numerical; celestial mechanics; minor planets, asteroids: general

Journal Article.  5510 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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