Published October 15, 1982
| Version v1
Journal article
Abundance of the actinides in the cosmic radiation as measured on HEAO 3
- 1. Department of Physics and the McDonnell Center for the Space Sciences, Washington University, St. Louis, Missouri
Description
The HEAO 3 detector of heavy cosmic-ray nuclei has observed one possible actinide nucleus and some 100 nuclei of the platinum-lead group of elements. The resulting upper limit of 3% for the abundance ratio of actinides to platinum-lead nuclides is significantly lower than previous results from other observations. This new limit is inconsistent with freshly synthesized, pure r-process sources for cosmic-ray nuclei in this charge interval but is consistent with a source having a composition similar to the solar system, or to aged r-process material. We observe no events with a charge greater than 96
Additional details
Publishing Information
- Journal Title
- Astrophys. J., Lett. Ed.
- Journal Volume
- 261
- Journal Issue
- 2
- Series
- Astrophys. J., Lett. Ed.
- Journal Page Range
- L117-L120
- ISSN
- 0571-7248
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 14748133
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- ACTINIDES; CHEMICAL COMPOSITION; COSMIC RADIATION; COSMIC RAY DETECTION; NUCLEI; NUCLEOSYNTHESIS; R PROCESS
- Descriptors DEC
- ELEMENTS; IONIZING RADIATIONS; METALS; RADIATION DETECTION; RADIATIONS; STAR EVOLUTION