Plasmaspheric helium ion distribution from satellite observations of Hel: 304 A

Details Plasmaspheric helium ion distribution from satellite observations of Hel: 304 A Plasmaspheric helium ion distribution from satellite observations of Hel: 304 A

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982phid.rept.....c&link_type=abstract

Unknown

Physics

Helium, Ion Distribution, Plasmasphere, Satellite Observation, Asymmetry, Atmospheric Models, Atmospheric Physics, Earth (Planet), Ion Density (Concentration), Mass Spectrometers, Mathematical Models, Night Sky, Plasma Equilibrium, Ultraviolet Telescopes

Scientific paper

High sensitivity and spatial resolution observations of the He(2)II-304 A emission line intensity in the Earth's nightglow have been carried out by the extreme ultraviolet telescope on the Apollo-Soyuz mission in July 1975. The data, obtained over a wide range of parameters, are compared with the predictions of a kinetic equilibrium model of plasmaspheric ion density. Excellent overall agreement observation and theory is found using as inputs a temperature model, solar flux, and H+ and O+ number densities determined by extrapolating nearly simultaneous Atmospheric Explorer C measurements at 300 km. The observations in the Northern Hemisphere are well fit by a model having 285 He+ ions cm-3 at 500 km independent of latitude or longitude while those in the south require 430 He+ ions cm -3 at the same altitude. This result is consistent with available information on the interhemispheric asymmetry of He+ observed by a mass spectrometer on Explorer 32 and on the winter neutral helium bulge.

Affiliated with

Also associated with

No associations

Rating

Plasmaspheric helium ion distribution from satellite observations of Hel: 304 A does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Plasmaspheric helium ion distribution from satellite observations of Hel: 304 A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plasmaspheric helium ion distribution from satellite observations of Hel: 304 A will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1457939