Abstract
There is evidence on Earth that the sun has shone for more than 3000 million years with about the same luminosity. From radioactive decay in different materials of the solar system, one nowadays assumes that it was formed 4.65 × 109 years ago. Since then, the sun has lived on hydrogen burning, predominantly according to the pp chain, and its interior has been appreciably enriched in 4He. In the following we show how a model of the present sun can be constructed.
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© 1990 Springer-Verlag Berlin Heidelberg
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Kippenhahn, R., Weigert, A. (1990). From the Initial to the Present Sun. In: Stellar Structure and Evolution. Astronomy and Astrophysics Library. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-61523-8_29
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DOI: https://doi.org/10.1007/978-3-642-61523-8_29
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-58013-3
Online ISBN: 978-3-642-61523-8
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