Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...375l..45a&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 375, July 10, 1991, p. L45-L48.
Astronomy and Astrophysics
Astrophysics
47
Charged Particles, Cosmic Rays, Earth Magnetosphere, Oxygen Ions, Cosmos Satellites, Interstellar Matter, Oxygen Spectra
Scientific paper
The ionic charge state of anomalous cosmic-ray oxygen has been determined by comparing measurements obtained inside the magnetosphere on a series of Cosmos satellite flights with simultaneous observations outside the magnetosphere from IMP 8 and ICE. A mean charge state of 0.9 + 0.3, - 0.2 is found for abount 10 MeV/nucleon anomalous oxygen, consistent with the model of Fisk et al. (1974), in which the anomalous cosmic rays originate from the neutral component of the local interstellar medium. This same approach gives results consistent with a mean charge state of +7 for solar energetic oxygen ions.
Adams James H. Jr.
Garcia-Munoz Manuel
Grigorov Naum L.
Klecker Berndt
Kondrat'yeva M. A.
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