EXOS-B/Siple Station VLF wave-particle interaction experimentPreliminary results of experiments made using the EXOS-B satellite to make simultaneous observations of VLF signals transmitted from Siple Station, Antarctica and interacting particles are reported. VLF measurements carried out by the EXOS-B wideband receiver upon satellite crossings of the Siple meridian at equatorial and high latitudes were able to detect the Siple signal on about 50% of the passes, and observed four instances of artificially stimulated emissions. Two of these cases exhibit triggering with a clear relation to the transmitted frequency format, while in the remaining two this relation is absent. Electron fluxes at energies from 3 eV to 9.5 keV are observed to be enhanced during the Siple stimulated emission events, with a distribution on the equatorial passes sufficient to satisfy the cyclotron interaction condition for parallel propagation of Siple signals of frequency about half the local cyclotron frequency.
Document ID
19820050315
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Kimura, I. (Tokyo Univ. Japan)
Matsumoto, H. (Tokyo Univ. Japan)
Hashimoto, K. (Kyoto University Kyoto, Japan)
Mukai, T. (Tokyo, University Tokyo, Japan)
Helliwell, R. A. (Tokyo Univ. Japan)
Bell, T. F. (Tokyo Univ. Japan)
Inan, U. S. (Tokyo Univ. Japan)
Katsufrakis, J. P. (Stanford University Stanford, CA, United States)