The dynamics of submicron-sized dust particles lost from PHOBOS

Details The dynamics of submicron-sized dust particles lost from PHOBOS The dynamics of submicron-sized dust particles lost from PHOBOS

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....9611283h&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 96, July 1, 1991, p. 11,283-11,290.

Physics

18

Cosmic Dust, Microparticles, Phobos, Planetary Magnetospheres, Particle Trajectories, Spacecraft Trajectories

Scientific paper

The dynamics of submicron-sized dielectric particles lost from the Martian moon Phobos are studied in connection with the possible detection of dust by the Phobos 2 spacecraft. The motion of these small dust grains is influenced not only by gravity but also by solar radiation pressure and electromagnetic forces. The plasma environment of Mars is described by applying a hybrid gasdynamic-cometary model. Some of the submicron-sized grains ejected at speeds on the order of a few tens meters per second can stay in orbit around Mars for several months forming a nonuniform and time-dependent dust halo.

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