Table 3
Initial parameters and ages derived from single-star tracks assuming inhomogeneous evolution for the primary.
| Inhomogeneous primaries, single-star tracks | ||||||||||
|
|
||||||||||
| SMC AB | 3 | 5 | 6 | 7 | 8 | |||||
|
|
||||||||||
| M1, i [M⊙] a | 50 | 100 | 80 | 70 | 80 | |||||
| Age [Myr]a | 4.6 | 3.0 | 3.4 | 3.7 | 3.6 | |||||
| Rmax,1 [R⊙] a | 1800 | 1200 | 2000 | 2100 | 2000 | |||||
| Mi, 2 [M⊙] b | 15 | 100 | 46 | 35 | 50 | |||||
| vrot, i, 2[km s-1]b | 230 | – | 170 | 160 | 130 | |||||
|
|
||||||||||
|
–0.01 | (0.03) | –0.01 | (0.05) | –0.01 | (0.06) | –0.02 | (0.04) | 0.09 | (0.15) |
|
–0.08 | (0.08) | –0.04 | (0.13) | –0.16 | (0.15) | –0.07 | (0.12) | –0.09 | (0.13) |
|
2 | (50) | –13 | (14) | – | – | 8 | (14) | 8 | (10) |
|
–0.03 | (0.05) | −0.11 | (0.05) | −0.25 | (0.1) | –0.03 | (0.05) | 0.00 | (0.05) |
Notes. The upper part of the table gives the initial parameters and age defining the best-fitting single star tracks assuming a non-homogeneous evolution, as derived by the BPASS and BONNSAI tools, as well as the maximum radius reached by the primary throughout the evolution, Rmax,1. The lower part gives En−On as obtained from the best-fitting BPASS track, along with corresponding σn values in parentheses (see Sect. 6.2). Underlined values denote deviations which exceed 2σ.
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