Obliquity dependence of the tangential YORP
نویسندگان
چکیده
منابع مشابه
Analytic Theory for the Yarkovsky–o’keefe–radzievski–paddack Effect on Obliquity
The Yarkovsky–O’Keefe–Radzievski–Paddack (YORP) effect is a thermal radiation torque that causes small objects to speed up or slow down their rotation and modify their spin vector orientation. This effect has important implications for spin dynamics of diameter D 50 km asteroids. In our previous work we developed an analytic theory for the component of the YORP torque that affects the spin rate...
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Introduction: The Yarkovsky-O'Keefe-Radzievskii-Paddack, or "YORP" effect is a process that can modify the spin of small asteroids by the cyclical absorption and re-radiation of heat from the sun. That process has recently become a popular candidate for the formation of binary asteroids. Walsh et al. [1] reported a numerical study using an "N-body" code of the deformations of a rubble pile aste...
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Mercury has a near-zero obliquity, i.e. its spin axis is nearly perpendicular to its orbital plane. The value of the obliquity must be known precisely in order to constrain the size of the planet’s core within the framework suggested by Peale [Peale, S.J., 1976. Nature 262, 765–766]. Rambaux and Bois [Rambaux, N., Bois, E., 2004. Astron. Astrophys. 413, 381–393] have suggested that Mercury’s ob...
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The YORP effect is produced when the surface of a small object in interplanetary space is heated by sunlight and reradiates the absorbed energy in thermal wavelengths. The absorbed, reflected, and emitted photons produce tiny torques on the small body that can change its spin rate and obliquity over planetary timescales. Previous theories of the YORP effect relied on numerical or seminumerical ...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2016
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201628746