Table 1
Presupernova models for blue supergiants.
| Model | RpSN |
|
MpSN | MZAMS | Xsurf | Ysurf | Zsurf | ξ1.5 | Ref. |
| (R⊙) | (M⊙) | (M⊙) | (M⊙) | (10-2) | |||||
|
|
|||||||||
| B15 | 56.1 | 4.05 | 15.02 | 15.02 | 0.767 | 0.230 | 0.34 | 0.24 | 1 |
| N20 | 47.9 | 5.98 | 16.27 | ~20.0 | 0.560 | 0.435 | 0.50 | 0.83 | 2 |
| W18 | 46.8 | 7.40 | 16.92 | 18.0 | 0.480 | 0.515 | 0.50 | 0.68 | 3 |
| W20 | 64.2 | 5.79 | 19.38 | 20.10 | 0.738 | 0.256 | 0.56 | 0.78 | 4 |
Notes. The columns give the name of the pre-SN model, its radius, RpSN; the helium-core mass, ; the pre-SN mass, MpSN; the progenitor mass, MZAMS; the mass fraction of hydrogen, Xsurf; helium, Ysurf; and heavy elements, Zsurf, in the hydrogen-rich envelope at the stage of core collapse; the compactness parameter, ξ1.5; and the corresponding reference.
Reference. (1) Woosley et al. (1988); (2) Shigeyama & Nomoto (1990); (3) Woosley (priv. comm.); (4) Woosley et al. (1997).
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