Survey of He(+)/He(2+) abundance ratios in energetic particle events

Details Survey of He(+)/He(2+) abundance ratios in energetic particle events Survey of He(+)/He(2+) abundance ratios in energetic particle events

Nov 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983nascp.2280.647h&link_type=abstract

In JPL Solar Wind Five p 647-652 (SEE N84-13067 03-92)

Physics

Charge Distribution, Energetic Particles, Helium, Particle Interactions, Charged Particles, Electrostatic Charge, Energy Spectra, Heavy Ions, Liquid Helium, Protons, Solar Flares

Scientific paper

The helium charge distribution in the energy range 0.4 to 0.62 MeV/nucleon in energetic particle events was studied. An average He+/He2+ ratio of 0.12 + or - 0.04 with ratios exceeding 0.3 for 41 out of 420 days events richest in He+ and no significant differences of the proton energy spectra, and the abundance of helium relative to protons and heavy ions for He+ rich events (He+/He2+ 0.3) and for events with He+/He2+ 0.3, respectively. It is also found that He+ rich events are predominantly low in energetic particle intensity.

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