Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 30 May 1997:
Vol. 276. no. 5317, pp. 1359 - 1362
DOI: 10.1126/science.276.5317.1359
Prev | Table of Contents | Next

Articles

Nucleosynthesis in Stars: Recent Developments

David Arnett, Grant Bazan

The development of new observational, experimental, and computational technologies is changing our understanding of the origins of the elements by thermonuclear burning in stars. Gamma-ray lines from newly made radioactive nuclei have been identified using instruments onboard low-Earth orbiting satellites. Grains in meteorites have isotopic anomalies which suggest that the grains were put together in a stellar explosion such as a supernova. Computer simulations allow such anomalies to be used to probe how these events happen. The simulations are being independently tested by experiments with high-energy density lasers. These developments are beginning to provide a quantitative diagnostic of galactic evolution, and of the epoch of formation of the first stars and galaxies.

D. Arnett is at the Steward Observatory, University of Arizona, Tucson, AZ 85721, USA. G. Bazan is at the Lawrence Livermore Laboratory, Livermore, CA 94551, USA.

Read the Full Text


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
The Formation and Early Evolution of the Milky Way Galaxy.
R. Buser (2000)
Science 287, 69-74
   Abstract »    Full Text »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)