Shallow extra mixing in solar twins inferred from Be abundances
Lithium and beryllium are destroyed at different temperatures in stellar interiors. As such, their relative abundances offer excellent probes of the nature and extent of mixing processes within and below the convection zone. We determine Be abundances for a sample of eight solar twins for which Li abundances have previously been determined. The analyzed solar twins span a very wide range of age, 0.5-8.2 Gyr, which enables us to study secular evolution of Li and Be depletion. We gathered...[Show more]
|Collections||ANU Research Publications|
|Source:||Astronomy & Astrophysics|
|Tucci Maia Shallow Extra Mixing 2015.pdf||236.87 kB||Adobe PDF|
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