Viscous boundary layer between the solar wind and cometary plasmas |
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Authors: | Héctor Pérez-de-Tejada Adolfo Orozco Murray Dryer |
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Institution: | (1) Instituto de Geofísica, Universidad Nacional Autónoma de México, México;(2) Space Environment Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado, U.S.A. |
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Abstract: | The interaction between the solar wind and cometary ionospheres downstream from the subsolar region is modeled in terms of viscous MHD flow theory. Calculations of the flow stremalines within the mixing region indicate that, as a result of viscous action, both the solar wind particles and the cometary material should be gradually directed towards the interior of the plasma wake to reinforce the formation of a type 1 tail. This behavior supports the notion that a transverse force acting on cometary plasma particles is actually responsible for the collapse of tail ray structures as suggested by Öpik (1964), Wurm (1968, 1975) and Wurm and Mammano (1972). |
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