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Bale et al. 1997
Bale, S.D., Burgess, D., Kellogg, P.J., Goetz, K. and Monson, S.J. (1997). On the amplitude of intense Langmuir waves in the terrestrial electron foreshock. Journal of Geophysical Research 102: doi: 10.1029/97JA00938. issn: 0148-0227.

Waveforms of large-amplitude Langmuir oscillations were recorded by the Wind spacecraft in the Earth's upstream electron foreshock region. We present some statistics of the waveforms and discuss them in the context of various saturation mechanisms. In particular, it is found that the value of Epeak/Erms is not large, as previously suggested, and that the largest-amplitude Langmuir waveforms are generally somewhat sinusoidal and lack structure on small spatial scales. The measured probability distribution of electric field amplitude and dimensionless energy suggest that some stochastic process may play a role in wave generation. The values of dimensionless energy needed to arrest Langmuir wave collapse occur with very small probability and the value of Epeak/Erms for large fields suggests that, statistically, Langmuir wave collapse is not an important process in the terrestrial foreshock.¿ 1997 American Geophysical Union

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Abstract

Keywords
Interplanetary Physics, Planetary bow shocks, Interplanetary Physics, Plasma waves and turbulence, Interplanetary Physics, Solar wind plasma
Journal
Journal of Geophysical Research
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American Geophysical Union
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