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… 

The Physics and Chemistry of Sputtering by Energetic Plasma Ions

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

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

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

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

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

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

Surface-bounded atmosphere of Europa

A 1-D collisional Monte Carlo model of Europa’s atmosphere is described in which the sublimation and sputtering sources 2O molecules and their molecular fragments are accounted for as well as the

Surface-bounded atmosphere of Europa

...

References

SHOWING 1-10 OF 72 REFERENCES

Evolutionary impact of sputtering of the Martian atmosphere by O+ pickup ions

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

The erosion of planetary and satellite atmospheres by energetic atomic particles

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

The Ancient Oxygen Exosphere of Mars: Implications for Atmosphere Evolution

The evolution of the Martian atmosphere, particularly with regard to water, is influenced by (1) “nonthermal” escape of oxygen atoms created by dissociative recombination and (2) by oxygen ion pickup

Theory of Sputtering. I. Sputtering Yield of Amorphous and Polycrystalline Targets

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

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
...