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Table 2.

Stellar parameters of selected CE He WDs inferred from post-CE sequences.

Object P Teff log g MWD  ( M H Min $ M_{\mathrm {H}}^{\mathrm {Min}} $) age( M H Min $ M_{\mathrm {H}}^{\mathrm {Min}} $) MWD  ( M H Max $ M_{\mathrm {H}}^{\mathrm {Max}} $) age( M H Max $ M_{\mathrm {H}}^{\mathrm {Max}} $) MWD(SRLOF) age(SRLOF)
(days) (K) (cm s−2) (M⊙) (Myr) (M⊙) (Myr) (M⊙) (Myr)
J0651+2844 0.00886 16340 ± 260 6.810 ± 0.050 0.246 ± 0.008 10.47 ± 1.89 0.266 ± 0.004 159.1 ± 23.5 0.251 ± 0.010 188.0 ± 104
J0822+3048 0.02801 13921 ± 160 7.146 ± 0.050 0.294 ± 0.011 111.5 ± 18.8 0.317 ± 0.01 430.5 ± 29.6 0.311 ± 0.011 233.6 ± 30
J0825+1152 0.05819 27180 ± 400 6.600 ± 0.040 0.250 ± 0.005 0.412 ± 0.035 0.299 ± 0.006 0.318 ± 0.04 0.287 ± 0.012 83.8  ± 88
J0923+3028 0.04495 18761 ± 220 6.860 ± 0.044 0.263 ± 0.007 4.22 ± 0.38 0.292 ± 0.006 38.18 ± 14.3 0.278 ± 0.010 72.3  ± 75
J0935+4411 0.01394 21660 ± 380 6.960 ± 0.050 0.290 ± 0.011 3.37 ± 1.13 0.330 ± 0.007 17.7 ± 10.7 0.318 ± 0.012 2.13 ± 48
J1053+5200 0.04258 16370 ± 240 6.540 ± 0.040 0.208 ± 0.006 4.87 ± 0.81 0.245 ± 0.0034 37.71 ± 18.2 0.213 ± 0.007 357.6 ± 151
J1056+6536 0.04351 21010 ± 360 7.100 ± 0.050 0.318 ± 0.011 8.28 ± 3.45 0.346 ± 0.007 53.53 ± 13.4 0.338 ± 0.012 9.2 ± 36
J1152+0248 0.09952 19734 ± 220 7.372 ± 0.043 0.376 ± 0.013 52.55 ± 6.27 0.398 ± 0.012 123.11 ± 5.92 0.398 ± 0.011 85.3 ± 11.6
J1234-0228 0.09188 17800 ± 260 6.610 ± 0.040 0.224 ± 0.005 3.93 ± 0.48 0.259 ± 0.004 6.92 ± 2.22 0.229 ± 0.008 284.6 ± 140
J1235+1543 0.03674 21024 ± 310 7.178 ± 0.044 0.335 ± 0.008 16.6 ± 5.51 0.357 ± 0.006 73.8 ± 12.0 0.354 ± 0.011 21.2 ± 28.2
J1436+5010 0.04582 17370 ± 250 6.660 ± 0.040 0.229 ± 0.005 5.04 ± 0.61 0.261 ± 0.004 15.21 ± 26.0 0.233 ± 0.008 244.7 ± 140
J1630+4233 0.02767 16070 ± 250 7.070 ± 0.050 0.290 ± 0.010 41.55 ± 12.7 0.306 ± 0.099 228.57 ± 15.1 0.305 ± 0.011 128.4 ± 20
J1738+2927 0.04770 12018 ± 230 6.972 ± 0.051 0.249 ± 0.009 134.4 ± 19.0 0.265 ± 0.008 707.99 ± 75.4 0.262 ± 0.011 349.4 ± 71
J2338-2052 0.07645 16620 ± 280 6.850 ± 0.050 0.254 ± 0.008 10.16 ± 1.77 0.270 ± 0.005 168.57 ± 19.5 0.262 ± 0.012 150.2 ± 77

Notes. The second column lists the binary orbital period. The third and fourth columns show Teff and log g of He WDs with P<0.1 days, likely products of the CE phase (Brown et al. 2020). Columns five through eight provide stellar mass and age since the end of the CE phase, based on non-flashing sequences with minimum MH (no residual H burning) and maximum MH (enhanced residual H burning). The final two columns present stellar mass and age since the end of SRLOF, using He WD models from Althaus et al. (2013).

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