A Caltech Library Service

Cosmic-Ray Abundances of Elements with Atomic Number 26 ≤ Z ≤ 40 Measured on HEAO-3

Binns, W. R. and Fickle, R. K. and Garrard, T. L. and Israel, M. H. and Klarmann, J. and Stone, E. C. and Waddington, C. J. (1981) Cosmic-Ray Abundances of Elements with Atomic Number 26 ≤ Z ≤ 40 Measured on HEAO-3. Astrophysical Journal Letters, 247 (3). L115-L118. ISSN 2041-8205. doi:10.1086/183602.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


Individual elements in the cosmic radiation of even atomic number (Z) in the interval 26 ≤ Z ≤ 40 have been resolved and their relative abundances measured. The results are inconsistent with a cosmic-ray source whose composition in this charge interval is dominated by r-process nucleosynthes1s. The ratios of cosmic-ray source abundances to solar system abundances in this interval follow the same general correlation with first ionization potential as for the lighter elements although there are deviations in detail.

Item Type:Article
Related URLs:
URLURL TypeDescription DOIArticle
Binns, W. R.0000-0001-6110-3407
Israel, M. H.0000-0002-8104-208X
Stone, E. C.0000-0002-2010-5462
Contact Email
Additional Information:© 1981 American Astronomical Society. Provided by the NASA Astrophysics Data System. Received 1981 March 9; accepted 1981 April 16. We thank T. Aufrance, B. Gauld, D. Grossman, K. Krombel, and D. Mitchell for assistance in programming for data analysis; R. N. F. Walker for development of the propagation code, and S. H. Margolis and K. L. Hainebach for the program to evaluate cross sections for the propagation code. The research was supported in part by NASA under contracts NAS8- 27976,77,78 and grants NGR 05-002-160, 24-005-050, and 26-008-001. Space Radiation Laboratory SRL ID #: 1981-14.
Group:Space Radiation Laboratory
Funding AgencyGrant Number
NASANGR 05-002-160
NASANGR 24-005-050
NASANGR 26-008-001
Subject Keywords:cosmic rays: abundances - nucleosynthesis
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1981-14
Issue or Number:3
Record Number:CaltechAUTHORS:20140417-151939075
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45033
Deposited By: SWORD User
Deposited On:23 Apr 2014 20:21
Last Modified:10 Nov 2021 16:59

Repository Staff Only: item control page