Dynamics of levitating dust near equilibria on asteroids

Details Dynamics of levitating dust near equilibria on asteroids Dynamics of levitating dust near equilibria on asteroids

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..286h&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.286

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Scientific paper

The electrostatically-dominated movement of dust particles on asteroids has important implications both for our understanding of the morphological evolution of these bodies and the design of future exploration vehicles. We numerically demonstrate that it is possible to stably levitate micron and submicron particles 3-13 m above the surface of the asteroids Eros and Itokawa. We show that the timescales of dust motion are short enough (on the order of minutes) to allow dust to exhibit levitation in a relatively constant plasma environment on a rotating asteroid. Finally, we constrain the initial launching velocities that lead to dust particle levitation (a cm/s window) above Itokawa.

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