Potentials of surfaces in space

Details Potentials of surfaces in space Potentials of surfaces in space

Nov 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981rpph...44.1197w&link_type=abstract

Reports on Progress in Physics, vol. 44, Nov. 1981, p. 1197-1250.

Astronomy and Astrophysics

Astrophysics

294

Artificial Satellites, Electric Potential, Electrostatic Charge, Interplanetary Space, Natural Satellites, Surface Properties, Astrophysics, Charge Transfer, Charged Particles, Dielectrics, Electric Fields, Interplanetary Magnetic Fields, Interstellar Space, Lunar Surface, Photoelectric Emission, Spacecraft Charging

Scientific paper

The subject of surface potentials on natural and artificial bodies in space is reviewed with particular emphasis on recent developments. Following a brief survey of work done up to the early 1970s on the charging of astrophysical objects in interstellar and interplanetary space and spacecraft charging, the various charging mechanisms in space are examined, including the collection of plasma particles, photoemission, and secondary electron emission by electron impact and ion impact, and the effects on charging of nonisotropic plasmas, wakes, and environmental magnetic and electric fields are considered. The concept of equilibrium potential is discussed, along with differential charging, potential barriers and discharge processes. The measurement of spacecraft potentials is then considered, and recent work on spacecraft potential modification and control by active and passive means is presented. Finally, astrophysical applications where charging effects may be important are discussed, and areas for further work are indicated.

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