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Title:
Age of the sun
Authors:
Guenther, D. B.
Affiliation:
AA(Yale University, New Haven, CT)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 339, April 15, 1989, p. 1156-1159. (ApJ Homepage)
Publication Date:
04/1989
Category:
Solar Physics
Origin:
STI
NASA/STI Keywords:
Meteorites, Solar Interior, Stellar Evolution, Helium, Solar Oscillations, Stellar Models
DOI:
10.1086/167370
Bibliographic Code:
1989ApJ...339.1156G

Abstract

The age of the sun is deduced to be 4.49 + or - 0.04 Gyr. This determination is based on the ages of the oldest meteorites, current models of solar system formation, and the premain-sequence evolution of a 1-solar-mass star from T Tauri phase to the ZAMS. Prior to this it was common to use an age of 4.7 Gyr for the sun. Comparing a solar model evolved to 4.5 Gyr with a model evolved to 4.7 Gyr shows that the 200 Myr difference in their ages has very little effect on the helium abundance and mixing-length parameters of the solar models.

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