On the dust/gas tori of PHOBOS and Deimos

Details On the dust/gas tori of PHOBOS and Deimos On the dust/gas tori of PHOBOS and Deimos

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990georl..17..857i&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 17, May 1990, p. 857-860.

Physics

34

Cosmic Dust, Deimos, Mars Environment, Neutral Gases, Phobos, Planetary Rings, Hot Atoms, Meteoroids, Optical Thickness, Outgassing, Plasma Oscillations, Mars, Satellites, Phobos, Dust, Deimos, Gases, Torus, Particles, Size, Theoretical Studies, Spacecraft Observations, Viking 1 Mission, Orbiters, Outgassing, Plasma, Phobos 2 Mission, Magnetic Fields, Ejecta, Rings, Calculations, Distribution, Bombardment, Meteoroids, Coronas

Scientific paper

The dust and gas environment in the vicinity of the orbit of the Phobos moon is assessed using both theoretical methods and observations from previous missions to Mars. It is found that a stable ring of dust particles with radii of about 100 microns could exist with a normal optical depth close to the upper limit determined from the Viking Orbiter 1 mission. The presence of a gas ring with neutral number density substantially higher than the hot atomic oxygen background is possible only if the Phobos moon maintains a certain level of outgassing.

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