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Table 2.
Upper bounds on the ULA relic density (Ωa) and Ωah2 at the 95% confidence level in each constraining mass bin for eRASS1 cluster number counts only and when combined with Planck 2015 CMB data.
| ma | Ωa | Ωa | Ωah2 | Ωah2 |
|---|---|---|---|---|
| (eRASS1) | (eRASS1 + Planck CMB) | (eRASS1) | (eRASS1 + Planck CMB) | |
| 10−26 eV | < 0.00790 | < 0.00573 | < 0.00361 | < 0.00263 |
| 10−27 eV | < 0.00341 | < 0.00299 | < 0.00156 | < 0.00135 |
| 10−28 eV | < 0.00780 | < 0.00351 | < 0.00353 | < 0.00156 |
| 10−29 eV | < 0.03627 | < 0.00333 | < 0.01672 | < 0.00137 |
| 10−30 eV | < 0.05409 | < 0.00457 | < 0.02492 | < 0.00181 |
| 10−31 eV | < 0.04463 | < 0.00543 | < 0.02063 | < 0.00227 |
| 10−32 eV | < 0.05580 | < 0.01354 | < 0.02583 | < 0.00592 |
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