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Lithium isotopic abundances in stars

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Date

2008

Authors

Nissen, Poul Erik
Asplund, Martin

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Research Projects

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Abstract

The Li isotope ratio, 6Li/7Li, in stars can be determined from the isotopic shift in the Li I 670.8 nm resonance line. Because of the small effect this however requires truly precision spectroscopy: spectral resolving power R ≥ 105 and S/N ≥ 500. In this review we discuss the method and what one can learn from Li isotopic abundances in terms of Big-Bang nucleosynthesis, cosmic ray production of Li, stellar structure, and planet formation. Some instrumental problems and the need for new instrumentation are briefly discussed.

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https://hdl.handle.net/1885/733799181

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ANU Research Publications

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Conference paper

Book Title

Precision Spectroscopy in Astrophysics: Proceedings of the ESO/Lisbon/Aveiro Conference held in Aveiro, Portugal, 11-15 September 2006

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Publication

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DOI

10.1007/978-3-540-75485-5_1

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