Table 2
Properties of the 20 M⊙ model computed with different codes, without rotation, and evaluated at four different evolutionary phases.
| Phase | STERN2 | Geneva | FRANEC | Padova | MESA | STAREVOL |
|
|
||||||
| Xc = 0.5 | ||||||
| Teff(K) | 33 522 | 33 758 | 33 709 | 32 538 | 33 011 | 33 365 |
|
4.764 | 4.733 | 4.736 | 4.747 | 4.745 | 4.733 |
| age (Myr) | 3.598 | 3.745 | 4.079 | 4.279 | 4.073 | 3.963 |
|
|
||||||
| TAMS3 | ||||||
| Teff(K) | 24 630 | 29 297 | 28 094 | 25 972 | 28 733 | 27 902 |
|
|
5.096 | 5.001 | 5.036 | 5.045 | 5.007 | 4.995 |
| age (Myr) | 8.173 | 7.819 | 9.085 | 9.100 | 8.598 | 8.535 |
|
|
||||||
| ZAHeMS | ||||||
| Teff(K) | 5388 | 24 014 | 27 382 | 15 657 | 23 200 | 24 259 |
|
|
4.987 | 5.025 | 5.012 | 5.044 | 5.042 | 5.015 |
| age (Myr) | 8.185 | 7.828 | 9.088 | 9.111 | 8.610 | 8.541 |
|
|
||||||
| TAHeMS3 | ||||||
| Teff(K) | − | 3753 | 3817 | 3550 | 3702 | 3462 |
|
|
− | 5.050 | 5.206 | 5.090 | 5.049 | 5.027 |
| age (Myr) | − | 8.713 | 9.690 | 9.820 | 9.530 | 9.748 |
Notes. When the central H mass fraction is 0.5 (Xc = 0.5); at the terminal age main sequence (TAMS); at the zero age helium burning main sequence (ZAHeMS); at the terminal age helium burning main sequence (TAHeMS).
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