Skip to main content
Article thumbnail
Location of Repository

Observations of the Li, Be, and B isotopes and constraints on cosmic-ray propagation

By G. A. De Nolfo A, I. V. Moskalenko B, W. R. Binns C, E. R. Christian D, A. C. Cummings E, A. J. Davis E, J. S. George E, P. L. Hink C, M. H. Israel C, R. A. Leske E, M. Lijowski C, R. A. Mewaldt E, E. C. Stone E, A. W. Strong G, T. T. Von Rosenvinge A, M. E. Wiedenbeck H and N. E. Yanasak E

Abstract

The abundance of Li, Be, and B isotopes in galactic cosmic rays (GCR) between E=50-200 MeV/nucleon has been observed by the Cosmic Ray Isotope Spectrometer (CRIS) on NASA’s ACE mission since 1997 with high statistical accuracy. Precise observations of Li, Be, B can be used to constrain GCR propagation models. We find that a diffusive reacceleration model with parameters that best match CRIS results (e.g. B/C, Li/C, etc) are also consistent with other GCR observations. A ∼15–20 % overproduction of Li and Be in the model predictions is attributed to uncertainties in the production cross-section data. The latter becomes a significant limitation to the study of rare GCR species that are generated predominantly via spallation

Year: 2006
OAI identifier: oai:CiteSeerX.psu:10.1.1.317.2121
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://citeseerx.ist.psu.edu/v... (external link)
  • http://arxiv.org/pdf/astro-ph/... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.