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Table 1.

Dereddened colours and luminosity of the hot component.

Date JD Orb. phase Hot comp. Hot comp. Hot comp. Teff Reff Lopt Ṁa
U0 (U − B)0 (B − V)0 [K] [R⊙] [L⊙] [10−8 M⊙ yr−1]
2016-02-07 57425.584 0.768 9.946 −0.800 0.240 10 012 2.44 53.8 1.90
2016-04-01 57479.584 0.005 9.462 −0.647 0.201 9131 3.70 85.4 3.02
2016-04-03 57481.576 0.014 9.137 −0.740 0.263 9322 4.11 114.5 4.05
2017-02-23 57807.593 0.447 10.083 −0.491 0.137 8762 3.05 49.1 1.74
2017-02-24 57808.569 0.451 10.083 −0.477 0.242 8044 3.73 52.3 1.85
2017-03-28 57841.460 0.595 9.941 −0.697 0.161 9675 2.63 54.2 1.92
2017-03-28 57841.499 0.596 9.900 −0.704 0.162 9710 2.66 56.2 1.99
2017-04-26 57870.479 0.723 9.981 −0.711 0.245 9232 2.85 52.8 1.87
2017-04-27 57870.542 0.723 9.900 −0.743 0.245 9462 2.80 56.5 2.00
2018-01-24 58142.635 0.919 9.451 −0.793 0.185 10 292 2.91 85.0 3.01
2018-01-24 58142.663 0.919 9.492 −0.787 0.187 10 224 2.89 81.8 2.89
2018-01-24 58142.684 0.919 9.531 −0.782 0.181 10 217 2.84 78.9 2.79
2018-04-14 58223.499 0.274 10.084 −0.759 0.240 9639 2.48 47.5 1.68
2018-04-15 58223.555 0.274 10.050 −0.762 0.255 9572 2.55 49.1 1.74
2018-07-06 58306.354 0.638 9.834 −0.656 0.158 9452 2.90 60.0 2.12
2018-07-06 58306.388 0.638 9.890 −0.646 0.148 9456 2.82 57.0 2.02
2020-04-16 58955.520 0.491 10.337 −0.661 0.324 8494 2.91 39.6 1.40
2020-04-16 58955.585 0.491 10.355 −0.669 0.408 8191 3.15 40.1 1.42
2021-01-20 59234.645 0.717 10.206 −0.682 0.250 9030 2.69 43.2 1.53
2021-01-20 59234.667 0.718 10.133 −0.700 0.234 9236 2.65 45.9 1.62
2021-01-20 59234.695 0.718 10.173 −0.688 0.235 9159 2.65 44.3 1.57
2022-07-23 59784.277 0.133 9.984 −0.754 0.268 9418 2.72 52.3 1.85
2023-04-28 60063.347 0.359 11.201 −0.490 0.475 7059 3.14 22.0 0.78
2023-04-28 60063.454 0.359 11.067 −0.527 0.444 7298 3.05 23.7 0.84
2023-05-24 60089.347 0.473 11.078 −0.553 0.370 7682 2.65 21.9 0.78
2023-05-24 60089.402 0.473 11.180 −0.545 0.371 7647 2.56 20.1 0.71
2023-08-11 60168.393 0.821 12.533 −0.384 0.576 6385 2.28 7.8 0.28
2023-08-11 60168.395 0.821 12.556 −0.397 0.604 6354 2.29 7.7 0.27
2023-08-25 60182.292 0.882 12.526 −0.258 0.554 6103 2.64 8.7 0.31
2023-08-25 60182.361 0.882 12.466 −0.303 0.582 6143 2.66 9.0 0.32
2023-10-14 60232.218 0.101 12.661 0.206 0.913 4500 (a)
2023-10-19 60237.197 0.123 12.727 0.174 1.005 4400 (a)
2023-10-20 60238.201 0.127 12.819 0.248 0.974 4400 (a)

Notes.

(a)

The uncertainties are large due to the low brightness.

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