The charge spectrum of positive ions in a hydrogen aurora

Details The charge spectrum of positive ions in a hydrogen aurora The charge spectrum of positive ions in a hydrogen aurora

Mar 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jgr....81.1264l&link_type=abstract

Journal of Geophysical Research, vol. 81, Mar. 1, 1976, p. 1264-1268.

Computer Science

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Auroral Ionization, Auroral Spectroscopy, Hydrogen Ions, Particle Charging, Auroral Zones, Ion Charge, Javelin Rocket Vehicle, Rocket Sounding, Solar Wind

Scientific paper

An auroral ion charge spectrometer was flown into a hydrogen aurora on a Javelin sounding rocket launched from Churchill, Manitoba. The instrument contained an electrostatic analyzer which selected particles with incident energy per unit charge up to 20 keV/charge and an 80-kV power supply which accelerated these ions onto an array of solid state detectors. Ions tentatively identified as H(+), He(+2), and O(+) were detected from 225 to 820 km in altitude. The experiment did not discriminate between H(+) and He(+), or between O(+), N(+), and C(+). Upper limits of highly charged heavy ion abundances have been set at 20% of the He(+2) and 0.15% of the H(+). It is concluded that both terrestrial and solar wind sources play significant roles in auroral ion precipitation.

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