Electrostatic charging and dust transport at Mercury's surface

Details Electrostatic charging and dust transport at Mercury's surface Electrostatic charging and dust transport at Mercury's surface

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13.1133i&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 13, Nov. 1986, p. 1133-1136.

Physics

15

Dust, Electrostatic Charge, Mercury (Planet), Planetary Surfaces, Charged Particles, Night, Planetary Magnetospheres

Scientific paper

The presence of energetic charged particles in the magnetosphere of Mercury and the direct interaction of these particles with the planetary surface are discussed. It is tentatively concluded that the nightside hemisphere could be occasionally charged to a surface potential of a few kilohertz. The resulting electrostatic transport of submicron dust particles on the surface of Mercury could play a significant role in the evolution and modification of the surface dust layer. Electromagnetic perturbation of the charged submicron ejecta from meteoroid impacts could also lead to the development of a tenuous dust coma or dust tail near Mercury. Ions impinging on the planetary surface could result in characteristic and observable X-ray emission. X-ray emission could also be detected from protons and heavy ions generated in the magnetotail region.

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