Near Earth Asteroids with measurable Yarkovsky effect
نویسنده
چکیده
We report on the determination of the Yarkovsky effect among Near Earth Asteroids (NEAs). The related recoil force is modeled through an empirical transverse acceleration resulting in a secular semimajor axis drift. For a successful determination we use a precise dynamical model including perturber asteroids and planetary relativistic terms. We found a few tens of object with a significant determination, i.e., with a signal to noise ratio (SNR) larger than 2. We discuss the consequences on impact predictions.
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تاریخ انتشار 2012