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

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.

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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.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
de Nolfo, G. A.0000-0002-3677-074X
Moskalenko, I. V.0000-0003-2272-2103
Binns, W. R.0000-0001-6110-3407
Christian, E. R.0000-0003-2134-3937
Cummings, A. C.0000-0002-3840-7696
Davis, A. J.0000-0002-9922-8915
Hink, P. L.0000-0002-0904-7564
Israel, M. H.0000-0002-8104-208X
Leske, R. A.0000-0002-0156-2414
Mewaldt, R. A.0000-0003-2178-9111
Stone, E. C.0000-0002-2010-5462
Strong, A. W.0000-0003-3799-5489
von Rosenvinge, T. T.0000-0001-7320-4141
Wiedenbeck, M. E.0000-0002-2825-3128
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
Funding AgencyGrant Number
Subject Keywords:Cosmic rays; Galaxy, general; Galaxy, abundances; Galaxy, evolution; ISM, general
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory2006-15
Issue or Number:7
Record Number:CaltechAUTHORS:20160722-094105351
Persistent URL:
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,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:69162
Deposited By: Deborah Miles
Deposited On:09 Aug 2016 16:41
Last Modified:29 Nov 2022 17:09

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