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Table 5.

Evolutionary stages of DPV062.

Stage Age (Myr) M (M) R (R) Po (d) log T (K) (M yr−1) Ev. process
Donor A 0.0000 6.3000 3.0000 2.5000 4.3543 −1.0302E-10 Zero Age Main Sequence (ZAMS)
B 0.1548 6.3000 2.7619 2.5000 4.3378 −1.7446E-10 Terminal Age Main Sequences (TAMS)
X1 23.3766 6.2946 3.5890 2.5036 4.3136 −3.1368E-10 Inversion of the 1H/4He ratio
C 47.0149 6.2825 6.8059 2.5113 4.2324 −8.5359E-10 Depletion of central hydrogen 1H
D 47.8593 6.2817 5.8168 2.5118 4.2841 −1.3862E-09 Size increase beyond the RL due to depletion of 1H
E 47.8839 6.2794 6.9436 2.5117 4.2401 −1.5147E-06 Initiation of mass transfer
U1 47.8906 6.0816 6.9598 2.5059 4.1984 −5.3892E-05 Mass inversion
F 47.8993 5.3722 6.8054 2.6156 4.0903 −1.0345E-05 Minimum Roche lobe value
X2 47.9236 2.8313 10.2132 6.9052 3.8434 −9.6518E-05 Current stage
G 47.9413 2.0136 15.4656 14.9259 3.9754 −1.0327E-05 End of optically thick mass transfer (U2)
H 48.1111 1.3618 24.9126 39.9391 4.0177 −8.8968E-08 End mass transfer stage
I 53.2305 1.3326 0.3931 40.1799 4.7147 −3.5969E-09 Helium depletion (4He)

Gainer
a 0.0000 5.9000 2.9088 2.5000 4.3402 −7.3593E-11 Zero Age Main Sequence (ZAMS)
b 0.1855 5.9000 2.6539 2.5000 4.3230 −1.1178E-10 Terminal Age Main Sequences (TAMS)
U1 47.8906 6.0897 5.2028 2.5059 4.3085 5.3880E-05 Mass inversion
X2 47.9236 9.3392 5.1596 2.3463 4.4259 9.6500E-05 Current stage
c 47.9272 9.6612 5.0893 2.5240 4.4311 8.4224E-05 End of mass accretion and relocation to the MS
d 47.9407 10.1512 4.6670 14.8279 4.4301 1.0703E-05 Second Main Sequence turnon
e 48.1111 10.7985 4.4084 39.9391 4.4603 −2.6812E-08 Exit from the threshold of rejuvenated B type stars
f 53.2305 10.7917 5.8267 40.1799 4.4308 −1.5193E-09 Stop

Notes. Exploring the evolutionary stages of DPV062: from the ZAMS to 4He depletion of the donor star. Detailed descriptions of key features are provided, along with corresponding ages measured in mega years (Myr). RL means Roche lobe.

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