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Martian Self-Sustaining Dust Torus

Published online by Cambridge University Press:  27 February 2018

Sho Sasaki
Sho Sasaki*
Affiliation:
Geological Institute, University of Tokyo, Hongo, Tokyo 113, Japan

Abstract

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Recent theoretical studies show that orbits of circummartian dust particles are controlled by solar radiation pressure and the Martian oblateness. Smaller dust particles (< 22μm) with enhanced orbital eccentricity are quickly captured by Mars. We find that the collisions of ring particles with Phobos and Deimos are the most important dust sources. Erosion of Phobos should set the upper limit on the dust production efficiency controlling this self-sustaining mechanism, and then the ring dust abundance.

Information

Type
V. Dusty Planetary Rings
Information
International Astronomical Union Colloquium , Volume 150: Physics, Chemistry and Dynamics of Interplanetary Dust , 1996 , pp. 187 - 190
Copyright
Copyright © Astronomical Society of the Pacific 1996

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