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Table 3.
Slope (m) of αox versus donor-dominated Lν, UV.
| Metallicity | BH-ULX | NS-ULX | Combined |
|---|---|---|---|
| (% Z⊙) | m | m | m |
| 0.5 | −0.239 ± 0.002 | −0.291 ± 0.003 | −0.224 ± 0.001 |
| 2.5 | −0.229 ± 0.003 | −0.291 ± 0.004 | −0.216 ± 0.002 |
| 10 | −0.163 ± 0.007 | −0.297 ± 0.007 | −0.187 ± 0.006 |
| 20 | −0.133 ± 0.005 | −0.304 ± 0.004 | −0.169 ± 0.005 |
| 30 | −0.193 ± 0.005 | −0.305 ± 0.003 | −0.202 ± 0.004 |
| 40 | −0.232 ± 0.006 | −0.318 ± 0.003 | −0.247 ± 0.005 |
| 50 | −0.272 ± 0.007 | −0.316 ± 0.004 | −0.272 ± 0.005 |
| 100 | −0.343 ± 0.013 | −0.317 ± 0.005 | −0.342 ± 0.006 |
Notes. The slope m of αox versus Lν,UV at 2500 Å and at different metallicities expressed as a percentage of solar metallicity for systems in which the UV luminosity is dominated by the donor.
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