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Table 2
CMFGEN model parameter ranges for the best-fitting models of the SN2015bh progenitor.
| SN2015bh Progenitor model parameters | ||
|---|---|---|
| L⋆ | 1.8−4.7 × 106 L⊙ | |
| R⋆ | 5.1−25.9 × 1012 cm (74–374 R⊙) | |
| v∞ | 1000km s−1 | |
| Ṁ | 0.6−1.5 × 10−3 M⊙ yr−1 | |
| T⋆ | 13000−19500 K | |
| Teff | 8700−10000 K | |
| E(B − V) | 0.25 | |
| Abundances | ||
| Element | Mass fraction (χ) | c∕cSun |
| H | 0.49 | 0.7 |
| He | 0.5 | 1.8 |
| C (assumed) | 5.6 × 10−5 | 0.02 |
| N (assumed) | 8.2 × 10−3 | 7.5 |
| O (assumed) | 1.3 × 10−4 | 0.02 |
| Na | 3.5 × 10−5 | 1 |
| Si (assumed) | 6.6 × 10−4 | 0.9 |
| Fe | 6.8 × 10−4 | 0.5 |
Notes. The abundances correspond to those from the model shown in Fig. 2. The CNO and Si abundances have been assumed, while the H/He abundance is degenerate with Ṁ (see text for details).
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