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Detailed Reference Information
Feng et al. 1992
Feng, W., Gurnett, D.A. and Cairns, I.H. (1992). Interference patterns in the Spacelab 2 plasma wave data: Oblique electrostatic waves generated by the electron beam. Journal of Geophysical Research 97: doi: 10.1029/92JA00989. issn: 0148-0227.

During the Spacelab 2 mission the University of Iowa's Plasma Diagnostics Package (PDP) explored the plasma environment around the shuttle. Wideband spectrograms of plasma waves were obtained from the PDP at frequencies of 0--30 kHz and at distances up to 400 m from the shuttle. Strong low-frequency (below 10 kHz) electric field noise was observed in the wideband data during two periods in which an electron beam was ejected from the shuttle. This noise shows clear evidence of interference patterns caused by the finite (3.89 m) antenna length. The low-frequency noise was the most dominant type of noise produced by the ejected electron beam. Analysis of antenna interference patterns generated by these waves permits a determination of the wavelength, the direction of propagation, and the location of the source region. The observed waves have a linear dispersion relation very similar to that of ion acoustic waves. The waves are believed to be oblique ion acoustic or high-order ion cyclotron waves generated by a current of ambient electrons returning to the shuttle in response to the ejected electron beam. ¿ American Geophysical Union 1992

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Abstract

Keywords
Ionosphere, Plasma waves and instabilities, Ionosphere, Active experiments, Space Plasma Physics, Waves and instabilities
Journal
Journal of Geophysical Research
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American Geophysical Union
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