| Autor: |
Binns, W. R., Christian, E. R., Cummings, A. C., George, J. S., Hink, P. L., Klarmann, J., Leske, R. A., Lijowski, M.L., Mewaldt, R. A., Stone, E. C., von Rosenvinge, T. T., Wiedenbeck, M. E., Yanasak, N. E. |
| Přispěvatelé: |
Ramaty, Reuven, Vangioni-Flam, Elisabeth, Cassé, Michel, Olive, Keith |
| Jazyk: |
angličtina |
| Rok vydání: |
1999 |
| Předmět: |
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| Popis: |
We present measurements of the nickel and cobalt isotopes from the Cosmic Ray Isotope Spectrometer (CRJS) which was launched in August, 1997 aboard the NASA Advanced Composition Explorer (ACE). The objectives of CRJS are to measure the isotopic abundances and energy spectra of galactic cosmic rays ~GCRs) with 3 ≤ Z ≤ 30. We find that for these nuclei the measured ^5Ni/^(60)Ni and ^(59)Co/^(60)Ni ratios imply a time delay between nucleosynthesis and acceleration to cosmic ray energies of > 10^5 y. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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