Filters: Author is Robert A. Helliwell [Clear All Filters]
A Feedback Model of Cyclotron Interaction between Whistler-Mode Waves and Energetic Electrons in the Magnetosphere. Journal of Geophysical Research. 78:7357-7371.. 1973.
The formation by electric fields of field-aligned irregularities in the magnetosphere. Radio Science. 6:299.. 1971.
Frequency-time behavior of artificially stimulated VLF emissions. Journal of Geophysical Research. 80:608-618.. 1975.
Generation of band-limited VLF noise using the Siple transmitter - A model for magnetospheric hiss. Journal of Geophysical Research. 91:4381-4392.. 1986.
Generation of VLF radio noise in the ionosphere by energetic particle streams. Space Research V, North Holland Publ. Co., Amsterdam.. 1965.
Graphic Data on the Earth's Main Magnetic Field in Space. Journal of Geophysical Research. 67:2207-2214.. 1962.
Ground observations of power line radiation coupled to the ionosphere and magnetosphere. Space Science Reviews. 35:131-137.. 1983.
Gyroresonant wave-particle interactions in a dynamic magnetosphere. Journal of Geophysical Research. 95:15103-15112.. 1990.
The heating of suprathermal ions above thunderstorm cells. Geophysical Research Letters. 20:1991-1994.. 1993.
The International Geophysical Month. Science. 134:1737-1738.. 1961.
An Interpretation of LOFTI-I very-low-frequency observations, AGARDOGRAPH 74. Pergamon Press. :75-81.. 1963.
Jikiken /EXOS-B/ observation of Siple transmissions. Advances in Space Research. 1:197-202.. 1981.
Latitudinal Cutoff of VLF Signals in the Ionosphere. Journal of Geophysical Research. 74:2393.. 1969.
Lightning-induced electron precipitation. Nature. 312:740-742.. 1984.
Longitudinal variations of very-low-frequency chorus activity in the magnetosphere - Evidence of excitation by electrical power transmission lines. Geophysical Research Letters. 4:275-278.. 1977.
Low-frequency noise observed in the distant magnetosphere with OGO 1.. Journal of Geophysical Research. 75:1854-1862.. 1970.
Low-frequency waves in the magnetosphere.. Reviews of Geophysics and Space Physics. 7:281-303.. 1969.
Lower hybrid waves excited through linear mode coupling and the heating of ions in the auroral and subauroral magnetosphere. Journal of Geophysical Research. 96:11379.. 1991.
Magnetospheric chorus - Amplitude and growth rate. Journal of Geophysical Research. 80:3265-3270.. 1975.
Magnetospheric chorus - Occurrence patterns and normalized frequency. Planetary and Space Science. 24:1007-1024.. 1976.
Magnetospheric effects of power line radiation. Science. 200:727-730.. 1978.
The modulated precipitation of radiation belt electrons by controlled signals from VLF transmitters. Geophysical Research Letters. 10:615-618.. 1983.
A New Mechanism for Accelerating Electrons in the Outer Ionosphere. Journal of Geophysical Research. 65:1839.. 1960.
Nonducted coherent VLF waves and associated triggered emissions observed on the ISEE-1 satellite. Journal of Geophysical Research. 86:4649-4670.. 1981.
Nonlinear pitch angle scattering and trapping of energetic particles during Landau resonance interactions with whistler mode waves. Journal of Geophysical Research. 89:10813-10826.. 1984.