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Refractory Nuclides in the Cosmic-Ray Source

Wiedenbeck, M. E. and Binns, W. R. and Cummings, A. C. and Davis, A. J. and de Nolfo, G. A. and George, J. S. and Israel, M. S. and Labrador, A. W. and Leske, R. A. and Mewaldt, R. A. and Stone, E. C. and von Rosenvinge, T. T. (2003) Refractory Nuclides in the Cosmic-Ray Source. In: Proceedings of the 28th International Cosmic Ray Conference. Vol.4. International Union of Applied Physics , Tokyo, Japan, pp. 1899-1902. http://resolver.caltech.edu/CaltechAUTHORS:20150406-133653562

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Abstract

New observations of the abundances and energy spectra of the isotopes of Mg, Al, and Si from ACE/CRIS are used to extend our previous results on the composition of refractory nuclides in cosmic-ray source material. For the 18 nuclides considered for elements between Mg and Ni, relative source abundances are generally consistent with solar-system values to within 20%. The ^(58)Fe abundance, taken relative to ^(28)Si, is found to have the largest difference from solar, a factor of ∼ 1.6. We suggest that the compositional similarity between the cosmic-ray source and the solar system can be understood in terms of acceleration of cosmicray refractories out of a well-mixed sample of interstellar matter.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://adsabs.harvard.edu/abs/2003ICRC....4.1899WADSArticle
Additional Information:Copyright Universal Academy Press Inc. This work was supported by NASA at Caltech (under grants NAG5-6912 and NAG5-12929), JPL, Washington U. and GSFC.
Group:Space Radiation Laboratory
Funders:
Funding AgencyGrant Number
NASANAG5-12929
NASANAG5-6912
Goddard Space Flight CenterUNSPECIFIED
Jet Propulsion LaboratoryUNSPECIFIED
Washington UniversityUNSPECIFIED
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory2003-16
Record Number:CaltechAUTHORS:20150406-133653562
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150406-133653562
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:56384
Collection:CaltechAUTHORS
Deposited By: Deborah Miles
Deposited On:15 Apr 2015 03:33
Last Modified:15 Apr 2015 03:33

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