Submicron-sized dust grains in the Martian environment

Details Submicron-sized dust grains in the Martian environment Submicron-sized dust grains in the Martian environment

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992adspr..12...27t&link_type=abstract

(Recent results on Mars and Venus; Proceedings of Symposium 3 and the Topical Meetings of the Interdisciplinary Scientific Commi

Physics

3

Interplanetary Dust, Mars Environment, Microparticles, Phobos, Radiation Pressure, Solar Radiation, Halos, Particle Motion, Particle Size Distribution, Particle Trajectories, Solar Planetary Interactions

Scientific paper

The dynamics of small-sized dust grains was studied in the Martian environment in connection with the possible detection of dust particles by the Phobos 2 spacecraft. The motion of submicron-sized particles is influenced not only by gravity but also by solar radiation pressure and electromagnetic forces. Depending on the size and on the actual varying interplanetary parameters, some of these small-sized grains ejected from Phobos at speeds on the order of a few tens m/s, can stay in orbit around Mars for several months forming a non-uniform and time-dependent dust halo.

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