Astronomy and Astrophysics – Astronomy
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008dda....39.0204c&link_type=abstract
American Astronomical Society, DDA meeting #39, #2.04
Astronomy and Astrophysics
Astronomy
Scientific paper
We report the results of a comprehensive search for evidence of the Yarkovsky effect in the orbital fits of near-Earth asteroids. The Yarkovsky effect is a subtle nongravitational acceleration on asteroids related to the anisotropic emission of thermal radiation. It has so far been directly measured in the motions of only two asteroids, 6489 Golevka [2] and 152563 (1992 BF) [1]. In past studies the Yarkovsky effect was modeled by solving the heat diffusion problem either linearly or through finite element methods. Here we take a less cumbersome and more direct approach, modeling the Yarkovsky effect as a purely transverse acceleration that is inversely proportional to the inverse square of the asteroid's heliocentric distance. The best-fitting transverse acceleration leads directly to a mean drift rate in the semimajor axis, which is the chief manifestation of the Yarkovsky acceleration. This study has revealed a number of probable detections of the Yarkovsky effect.
[1] S.R. Chesley et al., Science v. 302, 1739-1742 (2003)
[2] S.R. Chesley et al., BAAS v. 38, 591 (2006)
Chesley Steven R.
Vokrouhlicky David
No associations
LandOfFree
Searching for Yarkovsky Among the Near-Earth Asteroids does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Searching for Yarkovsky Among the Near-Earth Asteroids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Searching for Yarkovsky Among the Near-Earth Asteroids will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1537978