| Source | d (Mpc) | Spin period (s) | Porb(d) | LX (1039 ergs s−1) | Donor mass (solar mass) | B13 (G) | References |
|---|---|---|---|---|---|---|---|
| M82 X-2 | 3.6 | 1.37 | ∼ 2.5 | 4.9 | ≳ 5.2 | ∼2-3 | 1,2,3 |
| NGC 7793 P13 | 3.9 | ∼ 0.42 | 64 | ∼ 10 | ∼18-23 | ∼0.2-0.5 | 3,4,5,6 |
| NGC 5907 ULX | 17.1 | ∼ 1.13 | 5.3 | ∼ 100 | ≳ 20 | ∼0.2-3 | 7 |
| NGC 300 ULX-1 | 1.88 | ∼ 31.6 | - | 4.7 | ∼8-10 | ∼30 | 8,9,10 |
| M51 ULX-7 | 8.6 | ∼ 2.8 | ∼ 2 | ∼ 10 | ≳8 | 2-7 | 11,12 |
| NGC 1313 X-2 | 4.2 | ∼ 1.5 | - | ∼ 20 | ≲12 | - | 13 |
| Swift J0243.6+6124 | 0.007 | ∼ 9.86 | ∼ 27.6 | ∼ 2 | 16 | 1.6 | 14,15,16 |
| RX J0209.6-7427 | 0.06 | ∼ 9.3 | - | ∼ 1.6 | - | 2.4-4 | 17,18 |
| SMC X-3 | 0.06 | ∼ 7.78 | ∼ 45 | ∼ 2.5 | ≳ 3.7 | 2-3 | 19 |
| NGC 4631 X-8 | 7.5 | ∼ 9.67 | - | ∼ 3.4 | ∼15-70 | 3-20 | 20,21 |
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