Velocity Distributions, Charge States and Abundances of Inner Source Pickup Ions as Obtained from the Solar Wind Charge Exchange Model

Details Velocity Distributions, Charge States and Abundances of Inner Source Pickup Ions as Obtained from the Solar Wind Charge Exchange Model Velocity Distributions, Charge States and Abundances of Inner Source Pickup Ions as Obtained from the Solar Wind Charge Exchange Model

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsh44a..04b&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #SH44A-04

Physics

2423 Ionization Processes (7823), 2461 Plasma Interactions With Dust And Aerosols (7849), 6015 Dust, 6213 Dust

Scientific paper

Generally the origin of inner-source pickup ions is attributed to the interaction of solar wind ions with dust particles in the inner heliosphere. We have further developed the charge-exchange model of Wimmer- Schweingruber and Bochsler (2003) and quantified some results using the constraints provided by observations of dust size distributions, dust density distributions, and fluxes and abundances of pickup ions. Specifically, we have investigated the production of sputtered particles from small grains and find, that they could easily supply the observed amount of inner-source pickup ions. However, the apparent overabundance of neon among inner source pickup ions continues to pose an enigma, which could possibly be solved by constraining the production process to the outskirts of the solar corona.

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