Table 2
CEMP/VMP ratio, FC, calculated with model sets A1 and A4, with set Cq of Abate et al. (2013), and determined for observed stars from the SEGUE sample and the SAGA database.
| Model sets and data | FC (%) |
|
|
|
| A1 | 8.05 ± 0.02 |
| A4 | 7.91 ± 0.02 |
| Cq (Abate et al. 2013) | 2.38 ± 0.04 |
|
|
|
| SEGUE | 6.1 ± 1.0 |
| SAGA database | 23.5 ± 2.9 |
Notes. The errors convey only Poisson statistics. The SEGUE value of FC and the uncertainty are taken from Lee et al. (2013, Table 4) for stars in the range −2.5 ≤ [Fe/H] < − 2. Stars from the SAGA database are selected with iron abundance in the range [− 2.8, − 1.8] to increase the number statistics. In all cases CEMP stars are defined as stars with carbon abundance [C/Fe] > + 1.
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