Published November 21, 2001
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Constraints on the nucleosynthesis of refractory nuclides in galactic cosmic rays
Abstract
Abundances of the isotopes of the refractory elements Ca, Fe, Co, and Ni in the galactic cosmic-ray source are compared with corresponding abundances in solar-system matter. For the 12 nuclides considered, relative abundances agree to within a factor of 2, and typically within 20–30%. In addition, comparisons of cosmic-ray abundances with model calculations of supernova yields are used to argue that cosmic rays contain contributions from stars with a broad range of masses. Based on these and other results we suggest that cosmic rays probably represent a sample of contemporary interstellar matter, at least for refractory species.
Additional Information
© 2001 American Institute of Physics. Issue Date: 21 November 2001. This research was supported by the National Aeronautics and Space Administration at the California Institute of Technology (under grant NAG5-6912), the Jet Propulsion Laboratory, NASA's Goddard Space Flight Center, and Washington University.Attached Files
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Additional details
- Eprint ID
- 27871
- Resolver ID
- CaltechAUTHORS:20111118-151333593
- NASA
- NAG5-6912
- JPL
- NASA Goddard Space Flight Center
- Washington University
- Created
-
2011-11-21Created from EPrint's datestamp field
- Updated
-
2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory
- Series Name
- AIP Conference Proceedings
- Series Volume or Issue Number
- 598
- Other Numbering System Name
- Space Radiation Laboratory
- Other Numbering System Identifier
- 2003-23