Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· References in the article
· Citations to the Article (136) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
· Translate This Page
Neutron-capture nucleosynthesis in the helium-burning cores of massive stars
Lamb, S. A.; Howard, W. M.; Truran, J. W.; Iben, I., Jr.
AA(Illinois, University, Urbana, Ill.), AB(Illinois, University, Urbana, Ill.), AC(Illinois, University, Urbana, Ill.), AD(Illinois, University, Urbana, Ill.)
Astrophysical Journal, Part 1, vol. 217, Oct. 1, 1977, p. 213-221. (ApJ Homepage)
Publication Date:
NASA/STI Keywords:
Helium, Neutrons, Nuclear Fusion, Stellar Evolution, Supernovae, Abundance, Capture Effect, Cosmic Rays, Heavy Nuclei, Stellar Mass, Stellar Models, Stellar Structure
Bibliographic Code:


The paper is concerned with the consequences for nucleosynthesis of the neutron release from the nuclear reaction Ne-22(alpha, n)Mg-25 when it occurs in the convective helium-burning cores of massive stars. The development of the neutron-induced buildup from an original solar system distribution for the cores of 9, 15, and 25 solar masses is studied for the case in which the stars have an initial composition Y = 0.28, Z = 0.02. It is shown that significant enhancements in nuclear abundances up to atomic mass number A equals about 90 can be achieved in all but the lightest of the three models. The s-process nuclei in the mass range 60-70 are produced, and other features of the nucleosynthesis are examined. It is suggested that the results might help explain the origin of galactic cosmic rays and might serve as input for detailed supernova nucleosynthesis calculations.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences

More Article Retrieval Options

HELP for Article Retrieval

Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)


Find Similar Abstracts:

Use: Authors
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
arXiv e-prints