The Charge State of the Anomalous Component of Cosmic Rays
Abstract
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.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- July 1991
- DOI:
- 10.1086/186084
- Bibcode:
- 1991ApJ...375L..45A
- Keywords:
-
- Charged Particles;
- Cosmic Rays;
- Earth Magnetosphere;
- Oxygen Ions;
- Cosmos Satellites;
- Interstellar Matter;
- Oxygen Spectra;
- Space Radiation;
- COSMIC RAYS: ABUNDANCES;
- COSMIC RAYS: GENERAL