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Table 4

Number of halo WDs in our simulation box.

Single WD Merger→WD WD+WD unresolved WD+WD resolved WD+NS / BH Total
N total,G < 20 395 83 85 58 – 621
d < 400 pc N total 1.04 × 104 2604 1340 1447 29 1.58 × 104
M total 7.10 × 103 1.83 × 103 1.63 × 103 2.09 × 103 30.0 1.27 × 104
N pre−WD – 1 5 – – 6
N brightest = He – 99 164 – – 263
G < 20 N brightest = CO 872 97 128 157 – 1254
N brightest = ONe – – – – – –
N total 872 197 297 157 – 1523
N pre−WD – 29 365 – – 394
N brightest = He – 4.63 × 103 7.00 × 103 – – 1.16 × 104
G < 23 N brightest = CO 3.72 × 104 4.57 × 103 6.35 × 103 5.17 × 103 2 5.33 × 104
N brightest = ONe 5 – – – 1 6
N total 3.73 × 104 9.23 × 103 1.37 × 104 5.17 × 103 3 6.54 × 104
N pre−WD – 33 377 – – 410
N brightest = He – 4.56 × 104 7.65 × 104 – 53 1.22 × 105
G < 26 N brightest = CO 5.99 × 105 1.00 × 105 1.28 × 105 8.97 × 104 145 9.18 × 105
N brightest = ONe 180 28 12 13 9 242
N total 6.00 × 105 1.46 × 105 2.06 × 105 8.97 × 104 207 1.04 × 106
N pre−WD – 21 405 – – 426
d < 2.95 kpc N brightest = He – 9.21 × 104 1.66 × 105 – 528 2.58 × 105
N brightest = CO 4.15 × 106 9.60 × 105 5.98 × 105 3.78 × 105 6.87 × 103 6.10 × 106
N brightest = ONe 7.39 × 104 1.61 × 104 2.23 × 103 2.05 × 103 2.62 × 103 9.69 × 104
N total 4.23 × 106 1.07 × 106 7.66 × 105 3.80 × 105 1.00 × 104 6.45 × 106
M total 2.89 × 106 7.49 × 105 9.76 × 105 5.54 × 105 9.47 × 103 5.18 × 106

Notes. The three middle rows indicate magnitude-limited selections of halo WDs in our simulation box. For the volume-limited selections (d < 400 pc and d < 2.95 kpc) the total mass in WDs is indicated by Mtotal. These numbers are determined using our standard model (50% binaries). A long dash (–) indicates that the particular combination does not occur.

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