Abstracts of papers from other journals

• Book ID: 104650022
• Publisher: Springer
• Year: 1971
• Tongue: English
• Weight: 254 KB
• Volume: 16
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00162497

✦ Synopsis

The influence of individual heavy elements on the opacity of the solar core is investigated. Increases and decreases in abundances are considered quantitatively. The recently revised photospheric iron abundance and the possible effects of diffusion are included. Together, these two changes may increase the opacity at the solar center by almost 50 percent relative to that obtained with a Lambert-Warner photospheric composition.

A discussion of the uncertainty in the physical theory is given. Improved opacities are provided in a form that is convenient for solar evolutionary calculations.

For opacity considerations, the conditions within main-sequence Population I models having radiative cores are similar to those of the Sun, and the discussion here is relevant for such stars.