Journal article
Plasma density fluctuations observed during Space Shuttle Orbiter water releases
Journal of Geophysical Research, Vol.94(A9), pp.12081-12086
09/01/1989
DOI: 10.1029/JA094iA09p12081
Abstract
Observations by the Langmuir probe on the Plasma Diagnostics Package flown as part of the Spacelab 2 mission in the summer of 1985 show a strong increase in the level of turbulence near the Shuttle Orbiter during operations in which liquid water is released. The spectrum of the plasma density fluctuations peaks at the lowest frequencies measured (a few Hz) and extends up to a few kHz, near the lower hybrid frequency. Two potential mechanisms for generating the plasma turbulence are suggested which are both based on the production of water ions as a result of charge exchange with the ambient oxygen ions in the ionosphere. The first mechanism proposed is the ion-plasma instability which arises from the drift of the contaminant with respect to the ambient oxygen ions. The other mechanism proposed is the Ott-Farley instability, which is a result of the ring distribution formed by the 'pick-up' water ions.
Details
- Title: Subtitle
- Plasma density fluctuations observed during Space Shuttle Orbiter water releases
- Creators
- J. S. Pickett - University of IowaN. D'Angelo - Iowa UnivW. S. Kurth - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of Geophysical Research, Vol.94(A9), pp.12081-12086
- DOI
- 10.1029/JA094iA09p12081
- ISSN
- 0148-0227
- eISSN
- 2156-2202
- Language
- English
- Date published
- 09/01/1989
- Description audience
- PUBLIC
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984455580102771
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