Table 5.
Initial parameters with their distributions which were used to synthesize 1000 evolutionary tracks of the primary component using MESA software.
| Parameter | Distribution ( * ) | Comment |
|---|---|---|
| Initial mass at ZAMS | M1, ZAMS/M⊙ ∼ ℒ(25, 60) | Log-uniform distribution was used to maintain a nearly uniform density of evolutionary tracks in the HR diagram. |
| Solar-scaled metallicity | [Fe/H] ∼ 𝒩(−0.42, 0.04) | Parameters of the normal distribution were taken from Choudhury et al. (2021) to be consistent with the stellar metallicity distribution in the LMC. |
| Initial angular velocity of rotation normalized by its critical velocity | Ωrot/Ωcrit ∼ 𝒰(0.1, 0.7) | To account for the significant rotation rates of young massive stars, which trigger several mixing mechanisms in stellar interiors. |
| Parameter of exponential overshooting from the convective core | fov ∼ 𝒰(0.01, 0.05) | The range adopted after Ostrowski et al. (2017). |
| Scaling factor of wind mass-loss rate | Swind ∼ 𝒰(0.5, 5) | The actual mass-loss rate was obtained by multiplying its nominal value by Swind. |
Notes. ( * ) 𝒰(a, b) – uniform distribution on (a, b) range, ℒ(a, b) – log-uniform distribution on (a, b) range, 𝒩(a, b) – normal distribution with a and b corresponding to its mean and standard deviation, respectively.
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