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. https://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.
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| 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 | ||||||||||||||||||
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| Record Number: | CaltechAUTHORS:20150406-133653562 | ||||||||||||||||||
| Persistent URL: | https://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: | 09 Mar 2020 13:19 |
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