Table 1.
Statistical properties of DWDs with different αCE values in the Galaxy.
| Nsim | NGal | fRL + CE | fCE + CE | fCE + RL | ν | Ng < 21 | ρ | N< 60 min | NLISA | |
|---|---|---|---|---|---|---|---|---|---|---|
| (×108) | (yr−1) | (kpc−3) | ||||||||
| αCE = 0.25 | ||||||||||
| Pol model | 12156 | 0.76 | 79.1% | 0.2% | 20.7% | 0.009 | 1.08 × 105 | 939.1 | 0.22 × 105 | 1452 |
| Ge’s model | 60025 | 3.53 | 98.59% | 0.04% | 1.37% | 0.042 | 5.05 × 104 | 439.1 | 2.55 × 105 | 14098 |
| αCE = 0.5 | ||||||||||
| Pol model | 23010 | 0.83 | 75.8% | 5.7% | 18.5% | 0.016 | 1.29 × 105 | 1121.7 | 2.21 × 105 | 11096 |
| Ge’s model | 71714 | 4.34 | 96.80% | 0.05% | 3.15% | 0.051 | 9.81 × 104 | 853.0 | 2.46 × 105 | 12940 |
| αCE = 0.75 | ||||||||||
| Pol model | 42890 | 1.26 | 71.43% | 15.71% | 12.86% | 0.030 | 1.93 × 105 | 1678.3 | 6.43 × 105 | 25427 |
| Ge’s model | 87035 | 4.55 | 96.63% | 0.16% | 3.21% | 0.060 | 1.34 × 105 | 1165.2 | 4.03 × 105 | 19504 |
| αCE = 1.0 | ||||||||||
| Pol model | 58789 | 1.27 | 49.8% | 38.3% | 11.9% | 0.041 | 3.08 × 105 | 2678.3 | 1.04 × 106 | 36487 |
| Ge’s model | 95045 | 4.70 | 96.4% | 0.6% | 3.0% | 0.067 | 1.55 × 105 | 1347.8 | 7.16 × 105 | 27137 |
| αCE = 1.25 | ||||||||||
| Pol model | 72021 | 1.74 | 39.10% | 52.61% | 8.29% | 0.050 | 4.03 × 105 | 3504.3 | 1.4 × 106 | 42479 |
| Ge’s model | 103222 | 4.96 | 95.95% | 1.32% | 2.73% | 0.072 | 1.47 × 105 | 1278.3 | 9.8 × 105 | 31147 |
| αCE = 1.5 | ||||||||||
| Pol model | 81155 | 2.07 | 33.0% | 62.7% | 4.3% | 0.057 | 4.87 × 105 | 4234.8 | 1.70 × 106 | 45384 |
| Ge’s model | 109009 | 5.11 | 96.0% | 1.7% | 2.3% | 0.077 | 1.59 × 105 | 1382.6 | 1.34 × 106 | 37003 |
| αCE = 1.75 | ||||||||||
| Pol model | 89422 | 2.60 | 29.47% | 67.73% | 2.80% | 0.063 | 5.91 × 105 | 5139.1 | 1.92 × 106 | 49010 |
| Ge’s model | 112830 | 5.39 | 95.15% | 3.60% | 1.25% | 0.079 | 1.99 × 105 | 1730.4 | 1.58 × 106 | 41173 |
| αCE = 2.0 | ||||||||||
| Pol model | 95738 | 3.13 | 27.60% | 70.43% | 1.97% | 0.067 | 6.99 × 105 | 6078.3 | 2.04 × 106 | 49632 |
| Ge’s model | 116307 | 5.75 | 93.91% | 5.17% | 0.92% | 0.082 | 2.44 × 105 | 2121.7 | 1.73 × 106 | 43255 |
| αCE = 2.25 | ||||||||||
| Pol model | 101575 | 3.66 | 26.60% | 71.57% | 1.83% | 0.071 | 8.03 × 105 | 6982.6 | 2.14 × 106 | 49679 |
| Ge’s model | 119860 | 6.21 | 92.43% | 6.70% | 0.87% | 0.084 | 3.00 × 105 | 2608.7 | 1.82 × 106 | 43521 |
| αCE = 2.5 | ||||||||||
| Pol model | 106727 | 4.18 | 26.66% | 71.66% | 1.68% | 0.075 | 8.98 × 105 | 7808.7 | 2.17 × 106 | 48720 |
| Ge’s model | 123088 | 6.70 | 90.94% | 8.24% | 0.82% | 0.086 | 3.54 × 105 | 3078.3 | 1.84 × 106 | 43006 |
| αCE = 2.75 | ||||||||||
| Pol model | 110871 | 4.66 | 27.30% | 71.21% | 1.49% | 0.078 | 1.00 × 106 | 8695.7 | 2.17 × 106 | 47370 |
| Ge’s model | 125615 | 7.54 | 89.73% | 9.55% | 0.72% | 0.088 | 4.08 × 105 | 3547.8 | 1.81 × 106 | 47936 |
| αCE = 3.0 | ||||||||||
| Pol model | 114485 | 5.12 | 28.23% | 70.44% | 1.33% | 0.080 | 1.10 × 106 | 9565.2 | 2.14 × 106 | 45498 |
| Ge’s model | 127869 | 7.60 | 88.68% | 10.68% | 0.64% | 0.090 | 4.5 × 105 | 3913.0 | 1.71 × 106 | 46312 |
Notes. Nsim is the total number of DWDs from 5 × 106 primordial binaries. NGal is the total number of DWDs in the current Galaxy; f means the percentage of the number of DWDs from the corresponding channels; ν is the DWD birth rate; Ng < 21 is the total number of magnitude-limit samples in the simulations; ρ ≡ Ng < 21/Veff is the space density (see Sect. 5.1); N< 60 min is the number of DWDs with orbital periods < 60 min; NLISA is the number of LISA detectable sources (see Sect. 5.4).
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