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Table 5.
Evolutionary stages of DPV062.
| Stage | Age (Myr) | M (M⊙) | R (R⊙) | Po (d) | log T (K) | Ṁ (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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