Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8135367 | Icarus | 2016 | 10 Pages |
Abstract
It has been recently suggested that the distribution in proper inclination of the Koronis family may have not been significantly perturbed by local dynamics, and that information on the component of the ejection velocity that is perpendicular to the orbital plane (vW), may still be available, at least in part. In this work we estimate the magnitude of the original ejection velocity speeds of Koronis members using the observed distribution in proper eccentricity and inclination, and accounting for the spread caused by dynamical effects. Our results show that (i) the spread in the original ejection speeds is, to within a 15% error, inversely proportional to the fragment size, and (ii) the minimum ejection velocity is of the order of 50Â m/s, with larger values possible depending on the orbital configuration at the break-up.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Space and Planetary Science
Authors
V. Carruba, D. Nesvorný, S. Aljbaae,