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Table 1.

Classification of binary-stripped and accretor star models based on the mass transfer history.

MT class Timing of hydrogen-rich envelope removal
Single None
Case A During MS
Case Be Between TAMS and TACHeB, radiative envelope
Case Bl Between TAMS and TACHeB, convective envelope
Case C After TACHeB

Notes. Case A binary stripping or mass accretion takes place during the MS evolution of the donor and accretor, respectively, Case B between the TAMS and terminal age core helium burning (TACHeB) and Case C after TACHeB. Early and late Case B (Be/Bl) are stars with a radiative and mostly convective envelope, respectively.

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