Plasma-induced sputtering of an atmosphere
@article{Johnson1994PlasmainducedSO, title={Plasma-induced sputtering of an atmosphere}, author={Robert E. Johnson}, journal={Space Science Reviews}, year={1994}, volume={69}, pages={215-253} }
Magnetospheric ions, solar wind ions, and locally produced pick-up ions can impact the atmospheres of objects in the solar system, transferring energy by collisions with atmospheric atoms and molecules. This can result in an expansion of the atmospheric corona with a fraction of the energetic atoms or molecules being lost (sputtered) from the atmosphere. The expanded corona presents a larger target to the incident plasma, which in turn enhances pick-up ion formation and collisional ejection. In…
88 Citations
The Physics and Chemistry of Sputtering by Energetic Plasma Ions
- Physics
- 2001
Energetic ions from the solar wind, local pick-up ions or magnetospheric plasma ions impact the atmospheres and surfaces of a number of solar system bodies. These energetic incident ions deposit…
Sputter contribution to the atmospheric corona on Mars
- Physics
- 1998
Pickup-ion-induced sputtering, a potentially important nonthermal loss mechanism for the atmosphere of Mars, will also increase the content of the oxygen corona. This atmospheric sputtering process…
Monte Carlo calculations of plasma ion‐induced sputtering of an atmosphere: SO2 ejected from Io
- Physics
- 1996
Monte Carlo calculations are used to describe the kinetics of a column of SO2 gas (1016 cm−2) on Io, which is bombarded by a flux of ions from the Io plasma torus, transferring 8 × 1011 eV cm−2 s−1…
Stochastic Models of Hot Planetary and Satellite Coronas: Suprathermal Nitrogen in Titan's Upper Atmosphere
- Physics
- 2004
The processes of dissociation and dissociative ionization of molecular nitrogen by solar UV radiation and by the accompanying flux of photoelectrons, as well as sputtering of the atmosphere by fluxes…
The sputtering of an oxygen thermosphere by energetic O
- Physics
- 2000
Using two Monte Carlo models, we have calculated the ejection of O atoms from an atomic oxygen thermosphere which is bombarded by energetic O+. In these calculations, incident oxygen ions strike…
Stochastic models of hot planetary and satellite coronas: Atomic oxygen in Europa’s corona
- Physics
- 2006
This paper analyzes the formation, kinetics, and transport of hot oxygen atoms in the atmosphere of the Jovian satellite Europa. Atmospheric sources of suprathermal oxygen atoms are assumed to be…
Stochastic models of hot planetary and satellite coronas: a photochemical source of hot Oxygen in the upper atmosphere of Mars
- PhysicsSolar System Research
- 2005
The processes of the kinetics and transport of hot oxygen atoms in the upper atmosphere of Mars are studied. A reaction of dissociative recombination of the main ionospheric ion O2+ with thermal…
Energy Deposition in Planetary Atmospheres by Charged Particles and Solar Photons
- Physics
- 2008
We discuss here the energy deposition of solar FUV, EUV and X-ray photons, energetic auroral particles, and pickup ions. Photons and the photoelectrons that they produce may interact with…
References
SHOWING 1-10 OF 72 REFERENCES
Evolutionary impact of sputtering of the Martian atmosphere by O+ pickup ions
- Physics
- 1992
Nonthermal processes such as dissociative recombination of ionospheric molecules are known to lead to loss of atmospheric constituents (N, O, C) at Mars where the gravitational potential is easily…
Solar-wind sputtering of the martian atmosphere
- PhysicsNature
- 1978
IN the sputtering process an incident particle beam loses part of its energy to recoil motion of target atoms, some of which may escape through a nearby surface. The sputtering yield, S, is defined…
The erosion of planetary and satellite atmospheres by energetic atomic particles
- Physics
- 1979
Analytic expressions are presented which may be used to compute the sputter-erosion yield from any unimolecular gravitationally bound gas by any atomic charged particle of any energy. A calculation…
Theory of Sputtering. I. Sputtering Yield of Amorphous and Polycrystalline Targets
- Physics
- 1969
Sputtering of a target by energetic ions or recoil atoms is assumed to result from cascades of atomic collisions. The sputtering yield is calculated under the assumption of random slowing down in an…
Energy distribution of energetic O+ precipitation into the atmosphere
- Physics, Environmental Science
- 1992
Measurements of ring current ion densities by the Active Magnetospheric Particle Tracer Explorers CCE satellite suggest that a large flux of energetic (tens of keV) O+ precipitates in the…