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Table 2.
Input parameters.
| Parameter | Description | Reference |
|---|---|---|
| αMLT | Mixing-length parameter | Sect. 3.1.3 |
| fovershoot | Overshooting parameter | Sect. 3.1.3 |
| A1, A2, A3 | Amplitudes of opacity enhancement | Sect. 3.1.5 |
| M1, M2 | Stellar masses when Zacc starts to increase and when it becomes zero, respectively | Sect. 3.1.6, Fig. 4 |
| Zproto | Metallicity of accreted material when M⋆ ≤ M1 | Sect. 3.1.6, Fig. 4 |
| Zacc,max | Maximum metallicity when M⋆ = M2 | Sect. 3.1.6, Fig. 4 |
| Yproto | He abundance of accreted materials when M⋆ ≤ M1 | Sect. 3.1.6 |
| Yacc,min | He abundance of accreted materials when M⋆ > M1 in Runs 5 and 6 | Sect. 3.1.6 |
Notes. For most of the cases, we set A1 = A3 = 0.
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