Volume 371, Number 1, May III 2001
|Page(s)||350 - 353|
|Section||Celestial mechanics and astrometry|
|Published online||15 May 2001|
The Yarkovsky thermal force on small asteroids and their fragments
Choosing the right albedo
Institute of Astronomy, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic
2 Southwest Research Institute, 1050 Walnut St, Suite 426, Boulder, CO 80302, USA e-mail: firstname.lastname@example.org
Corresponding author: D. Vokrouhlický, email@example.com
Accepted: 12 March 2001
Thermal (Yarkovsky) forces acting on small bodies in the solar system have been shown to play an important role in the the delivery of meteoroids and km-sized asteroids to Earth. So far, several aspects of the Yarkovsky force have been studied in some detail, including non-linear effects of the heat diffusion problem, non-sphericity and the layered-structure of the objects. In this paper, we address the concept of optical absorptivity. We find that the best formulation of the Yarkovsky effect uses the first two moment-integrals of an object's hemispheric albedo. A useful approximation of these albedo parameters is an object's Bond albedo.
Key words: celestial mechanics / minor planets, asteroids / meteoroids
© ESO, 2001
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.