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| Paper: |
Heavy elements and mixing in red giants |
| Volume: |
9, Cool Stars, Stellar Systems, and the Sun: Sixth Cambridge Workshop |
| Page: |
340 |
| Authors: |
Smith, Verne V. |
| Abstract: |
A brief overview of the s-process in red giants is presented, followed by discussions of three specific topics involving heavy-element s-process nucleosynthesis and mixing in red giants: (1) a comparison of neutron densities derived from observations and from the most recent stellar models, (2) how observations of technetium in S stars have led to a natural division of these stars into two separate groups, one of which is the result of single-star stellar evolution while the other is the result of mass transfer in a binary system, (3) a brief discussion of the recent speculative suggestion that gamma-ray induced photofission of heavy elements (Th and U) might be a source of the Tc observed in certain types of red giants. |
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