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| Paper: |
Extra-Mixing Processes in Asymptotic Giant Branch Stars |
| Volume: |
445, Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants |
| Page: |
29 |
| Authors: |
Stancliffe, R. J.; Lattanzio, J. C. |
| Abstract: |
Extra mixing is the mixing of material in regions that are stable
against convection. We identify two situations in asymptotic giant
branch stars where extra mixing is thought to be required. We then
discuss four physical processes that might be the cause of such
mixing: convective overshooting, rotational mixing, internal gravity
waves and thermohaline mixing. The first three are discussed in terms
of the formation of the 13C pocket, while
the last is discussed in relation to abundance changes during the
interpulse. We round off this review with some comments on how
progress might be made in this area. |
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