Computer Science – Sound
Scientific paper
Aug 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977jgr....82.3324s&link_type=abstract
Journal of Geophysical Research, vol. 82, Aug. 1, 1977, p. 3324-3328.
Computer Science
Sound
56
Geomagnetism, Ion Accelerators, Ionospheric Ion Density, Magnetic Effects, Oxygen Ions, Satellite Observation, Angular Distribution, Ionospheric Sounding, Mass Spectroscopy, Pitch (Inclination), Polar Regions
Scientific paper
O(+) ions with energies of approximately 1 keV have been observed flowing upward out of the ionosphere with a pitch-angle distribution having a minimum along the magnetic-field direction and maxima in about the 130-140-deg range. The measurements were obtained with an energetic-ion mass-spectrometer experiment on the satellite 1976-65B at an altitude of about 7600 km in the northern dayside polar cusp. The data are interpreted as resulting from a mechanism which accelerates ambient ionospheric ions in a direction perpendicular to the geomagnetic field.
Johnson Richard G.
Sharp R. D.
Shelley Edward G.
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