Energetic neutral atoms at Mars 2. Imaging of the solar wind-Phobos interaction

Details Energetic neutral atoms at Mars 2. Imaging of the solar wind-Phobos interaction Energetic neutral atoms at Mars 2. Imaging of the solar wind-Phobos interaction

Oct 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jgra..107.1278m&link_type=abstract

Journal of Geophysical Research (Space Physics), Volume 107, Issue A10, pp. SSH 5-1, CiteID 1278, DOI 10.1029/2001JA000328

Physics

Space Physics

6

Planetology: Solar System Objects: Martian Satellites, Planetology: Comets And Small Bodies: Interactions With Solar Wind Plasma And Fields, Planetary Sciences: Remote Sensing, Planetary Sciences: Rings And Dust

Scientific paper

The interactions between the solar wind and the neutral gas from Mars' moon Phobos and from the Martian exosphere are examined in order to check the feasibility of the energetic neutral atoms (ENA) remote sensing technique applied to Phobos' environment. Both solar wind and Mars exosphere models, as given in the literature, have been used. The density distribution of an outgassed neutral oxygen population located at Phobos' orbit has been simulated via Monte Carlo integration. Images and energy spectra of ENA, escaping through charge exchange processes, have been reconstructed applying a line of sight integration method. The performed simulation shows that the ENA signal originated from Phobos' environment is faint while observing far from Phobos location; anyway, it could be detected in some particular Mars-Phobos vantage point configurations. The possibility that the neutral oxygen outgassing rate might be estimated through ENA signal deconvolution is briefly discussed.

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