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| Paper: |
Lithium Isotopic Abundances in the Early Galaxy |
| Volume: |
374, From Stars to Galaxies: Building the Pieces to Build Up the Universe |
| Page: |
119 |
| Authors: |
Asplund, M. |
| Abstract: |
The lithium isotopes are potent probes of cosmic, galactic and stellar evolution. Herein I describe the challenging method used to derive Li isotopic abundances in metal-poor halo stars and their associated uncertainties. The results from our VLT-based program using extraordinarily high-quality spectra points to two cosmological Li problems: the observed 7Li abundance is too low while the 6Li abundance is too large compared with standard models for Big Bang nucleosynthesis and Galactic cosmic ray spallation. |
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