Open Access
Table 4
Comparison of main stellar parameters of the donor in Cyg X-1 from literature.
| This work | Mahy+2022 | Miller-Jones+2021 | Shimanskii+2012 | Caballero-Nieves+2009 | Herrero+1995 | |
| T*(kK) | 29 | 29.8 | 31.14 | 30.5 | 28 | 32 |
| log g* (cm s-2) | 3.2 | 3.33 | 3.35 | 3.31 | 3.0 | 3.15 |
| log L(L⊙) | 5.5 | 5.48 | 5.625 | − | 5.45 | 5.4 |
| R*(R⊙) | 22.3 | 20.7 | 22.3 | − | 22.7 | 17 |
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