Publications
Pulsating Magnetospheric Field-Aligned Electrons
The Electron Drift Instruments (EDI) on the Cluster spacecraft are often operated in a mode that measures electron fluxes simultaneously parallel and anti-parallel to the magnetic field, at energies of 500 or 1000 eV...
Keywords: Cluster, beams, solitons, vortices, aurora
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The Electron Drift Instruments (EDI) on the Cluster spacecraft are often operated in a mode that measures electron fluxes simultaneously parallel and anti-parallel to the magnetic field, at energies of 500 or 1000 eV...
Keywords: Cluster, beams, solitons, vortices, aurora
View full text: PDF | HTML
Electric Fields in the Vicinity of L=20 Re During Substorms
Convective flows measured by the Electron Drift Instrument (EDI) on the Cluster spacecraft are studied during orbit segments that traverse the magnetotail of the Earth. These segments are often in the vicinity of L shells around 20 Re, corresponding to relatively high auroral latitudes...
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Convective flows measured by the Electron Drift Instrument (EDI) on the Cluster spacecraft are studied during orbit segments that traverse the magnetotail of the Earth. These segments are often in the vicinity of L shells around 20 Re, corresponding to relatively high auroral latitudes...
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Music and the Magnetosphere
The beginning of the space age is usually associated with the time of the first satellite launches. Some of us were fortunate enough to have already been pursuing the exploration of space. This paper attempts to document some of the extraordinary opportunities for exploration and discovery Professor James A. Van Allen offered a young music student at the State University of Iowa (SUI) during the period 1954 to 1959.
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The beginning of the space age is usually associated with the time of the first satellite launches. Some of us were fortunate enough to have already been pursuing the exploration of space. This paper attempts to document some of the extraordinary opportunities for exploration and discovery Professor James A. Van Allen offered a young music student at the State University of Iowa (SUI) during the period 1954 to 1959.
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Auroral Electron Beams Near the Magnetic Equator
Intense beams of electrons travelling parallel to the local magnetic field have been observed at a magnetic latitude of 11° and a radial distance of 6.6 Re. The distribution function for electrons traveling within 8° of the field line direction is typically flat or slightly rising up to a break point beyond which it decreases as v-5 to v-10. The energy corresponding to the break point velocity is usually between 0.1 and 10 keV...
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Intense beams of electrons travelling parallel to the local magnetic field have been observed at a magnetic latitude of 11° and a radial distance of 6.6 Re. The distribution function for electrons traveling within 8° of the field line direction is typically flat or slightly rising up to a break point beyond which it decreases as v-5 to v-10. The energy corresponding to the break point velocity is usually between 0.1 and 10 keV...
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Direct Measurement of Particles Producing Visible Auroras
The nature of the particles producing two visible auroras at Fort Churchill, Canada, has been determined with the aid of rocket-borne detectors. Magnetic fields were used to separate the proton and electron components of the particle flux. It was found in each case that a major fraction of the auroral light was produced by electrons with energies of less than 10 keV...
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The nature of the particles producing two visible auroras at Fort Churchill, Canada, has been determined with the aid of rocket-borne detectors. Magnetic fields were used to separate the proton and electron components of the particle flux. It was found in each case that a major fraction of the auroral light was produced by electrons with energies of less than 10 keV...
View full text: PDF