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Mass loading in velocity shears (1996)

Perez-de-Tejada, H. ; Durand-Manterola, H.

[S.l.] : American Institute of Physics (AIP)

Physics of Plasmas 3 (1996), S. 639-643

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ISSN: 1089-7674

Source: AIP Digital Archive

Topics: Physics

Notes: An analysis is presented on the motion of contaminant ions picked up by the solar wind within velocity shears. An expression is obtained for the ion density in terms of the flow speed across the velocity shear. It is argued that enhanced densities occur in the region where the flow speed is small and that local values may become significantly larger than the ion density outside the velocity shear. A comparison is made with measurements obtained across the plasma wake of comet Giacobini–Zinner with the International Cometary Explorer (ICE) spacecraft. Within the velocity shear of that comet's ionosheath the cometary ion density becomes large and reaches values that are different from those expected when the ion population depends only on the ionization of a uniform outflow of neutral particles from the cometary nucleus. The enhanced plasma density expected within the velocity shear is compatible with the shape of the density profile of contaminant ions detected in that region. © 1996 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.871869

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