Fig. 2
Contraction timescale, Δtproto of evolution from Roche-lobe detachment until settling on the WD cooling track, plotted as a function of WD mass, MWD. The initial ZAMS masses of the WD progenitors (the LMXB donor stars) are indicated with various symbols and colours. The red line marks Mflash ≃ 0.21 M⊙ for progenitor stars ≲1.5 M⊙.
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