de Nolfo, G. A. and Moskalenko, I. V. and Binns, W. R. and Christian, E. R. and Cummings, A. C. and Davis, A. J. and George, J. S. and Hink, P. L. and Israel, M. H. and Leske, R. A. and Lijowski, M. and Mewaldt, R. A. and Stone, E. C. and Strong, A. W. and von Rosenvinge, T. T. and Wiedenbeck, M. E. and Yanasak, N. E. (2006) Observations of the Li, Be, and B isotopes and constraints on cosmic-ray propagation. Advances in Space Research, 38 (7). pp. 1558-1564. ISSN 0273-1177. doi:10.1016/j.asr.2006.09.008. https://resolver.caltech.edu/CaltechAUTHORS:20160722-094105351
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Abstract
The abundance of Li, Be, and B isotopes in galactic cosmic rays (GCRs) between E = 50 and 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, and 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.
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| Additional Information: | © 2006 COSPAR. Published by Elsevier Ltd. Received 12 November 2004, Revised 5 September 2006, Accepted 8 September 2006, Available online 25 October 2006. This research was supported by NASA at the NASA/Goddard Space Flight Center, the California Institute of Technology, (Grant NAG5-6912), the Jet Propulsion Laboratory, and Washington University. I.V.M. acknowledges partial support from NASA Astrophysics Theory Program (ATP) grant and NASA Astronomy and Physics Research and Analysis Program (APRA) grant. | ||||||||||||||||||||||||||||||
| Group: | Space Radiation Laboratory, Astronomy Department | ||||||||||||||||||||||||||||||
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| Subject Keywords: | Cosmic rays; Galaxy, general; Galaxy, abundances; Galaxy, evolution; ISM, general | ||||||||||||||||||||||||||||||
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| Issue or Number: | 7 | ||||||||||||||||||||||||||||||
| DOI: | 10.1016/j.asr.2006.09.008 | ||||||||||||||||||||||||||||||
| Record Number: | CaltechAUTHORS:20160722-094105351 | ||||||||||||||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20160722-094105351 | ||||||||||||||||||||||||||||||
| Official Citation: | G.A. de Nolfo, I.V. Moskalenko, W.R. Binns, E.R. Christian, A.C. Cummings, A.J. Davis, J.S. George, P.L. Hink, M.H. Israel, R.A. Leske, M. Lijowski, R.A. Mewaldt, E.C. Stone, A.W. Strong, T.T. von Rosenvinge, M.E. Wiedenbeck, N.E. Yanasak, Observations of the Li, Be, and B isotopes and constraints on cosmic-ray propagation, Advances in Space Research, Volume 38, Issue 7, 2006, Pages 1558-1564, ISSN 0273-1177, http://dx.doi.org/10.1016/j.asr.2006.09.008. | ||||||||||||||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||||||||||||
| ID Code: | 69162 | ||||||||||||||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||||||||||||||
| Deposited By: | Deborah Miles | ||||||||||||||||||||||||||||||
| Deposited On: | 09 Aug 2016 16:41 | ||||||||||||||||||||||||||||||
| Last Modified: | 29 Nov 2022 17:09 |
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