Atomic Diffusion in Old Stars : Testing parameter degeneracies
The predicted primordial lithium abundance differs from observations of unevolved halo stars on the Spite plateau by a factor two to three. Surface depletion due to atomic diffusion has been suggested as a cause of this so-called cosmological lithium problem. Evolutionary abundance trends indicative...
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| Format: | Others |
| Language: | English |
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Uppsala universitet, Institutionen för fysik och astronomi
2010
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| Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-158223 |