The composition of corotating energetic particle streams

Journal Article · Fri Sep 01 04:00:00 EDT 1978 · Astrophys. J., Lett. Ed.; (United States)

DOI:https://doi.org/10.1086/182766· OSTI ID:6627865

McGuire, R E; von Rosenvinge, T T; McDonald, F B

The relative abundances of 1.5--23 MeV per nucleon ions in corotating nucleon streams are compared with ion abundances in particle events associated with solar flares and with solar and solar wind abundances. He/O and C/O ratios are found to be a factor of the order 2--3 greater in corotating streams than in flare-associated events. The distribution of H/He ratios in corotating streams is found to be much narrower and of lower average value than in flare-associated events. H/He in corotating energetic particle streams compares favorably in both lack of variability and numerical value with H/He in high-speed solar wind plasma streams. The lack of variability suggests that the source population for the corotating energetic particles is the solar wind, a suggestion consistent with acceleration of the corotating particles in interplanetary space.

• Research Organization: Laboratory for High Energy Astrophysics, NASA Goddard Space Flight Center
• OSTI ID: 6627865
• Journal Information: Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 224:2; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640104* -- Astrophysics & Cosmology-- Solar Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHARGED PARTICLES
CRYOGENIC FLUIDS
ELEMENTS
FLUIDS
HELIUM
HYDROGEN
INTERPLANETARY SPACE
IONS
NONMETALS
RADIATIONS
RARE GASES
SOLAR ACTIVITY
SOLAR FLARES
SOLAR RADIATION
SOLAR WIND
SPACE
SPECTRA