Cosmic-ray abundances of Sn, Te, Xe, and BA nuclei measured on HEAO 3

Details Cosmic-ray abundances of Sn, Te, Xe, and BA nuclei measured on HEAO 3 Cosmic-ray abundances of Sn, Te, Xe, and BA nuclei measured on HEAO 3

Apr 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...267l..93b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 267, April 15, 1983, p. L93-L96.

Other

8

Abundance, Cosmic Rays, Cosmochemistry, Heavy Nuclei, Nuclear Fusion, Barium, Heao 3, Tellurium, Tin, Xenon

Scientific paper

The results of an analysis of HEAO 3 Heavy Nuclei Experimental data covering 440 days of observations of Sn-Ba nuclei in cosmic rays are reported. The particles were detected by a Cernkov counter, and a Z-squared ceiling was calculated to normalize the histograms produced. The observed large abundance of Sn and Ba relative to other elements in the region of interest indicated a predominance of the s-process in the source of the particles. When account was taken of first ionization potential effects, the data indicated that the material could be solar system in origin. A source dominated by the r-process nucleosynthesis was ruled out at the 0.93 confidence level.

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