Table 1
Relevant times, structure and composition values that characterise the evolution prior to the TP-(S)AGB.
M ZAMS | t CHB | M He | t CHeB | M CO | X c(C) | X c(O) | C − burning |
M ⊙ | Myr | M ⊙ | Myr | M ⊙ | |||
|
|||||||
4 | 96.24 | 0.59 | 28.16 | 0.87 | 0.497 | 0.503 | no |
5 | 62.78 | 0.81 | 14.84 | 0.91 | 0.507 | 0.493 | no |
6 | 45.31 | 1.05 | 9.57 | 0.97 | 0.474 | 0.526 | no |
7 | 34.64 | 1.32 | 6.35 | 1.10 | 0.467 | 0.533 | yes |
8 | 27.71 | 1.60 | 4.56 | 1.18 | 0.490 | 0.510 | yes |
9 | 22.87 | 1.88 | 3.53 | 1.33 | 0.497 | 0.503 | yes |
Notes. Hydrogen and helium-burning lifetimes and resulting core sizes (of H-exhausted and He-exhausted cores respectively) for our models. The central carbon and oxygen abundances, after core helium-burning are also given. The last columns indicates whether the models ignite carbon. See text for details.
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