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Table 2
One-dimensional marginalized parameter distributions for the wCDM+k model with and without sterile neutrinos.
| Parameter | ΛCDM | ΛCDM+1νs | ΛCDM+2νs | |||
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| ns | 0.968 | ± 0.014 | 0.959 | ± 0.013 | 0.963 | ± 0.013 |
| ΩDE | 0.700 | ± 0.014 | 0.668 | ± 0.015 | 0.638 | ± 0.018 |
| Age (Gyr) | 13.87 | ± 0.31 | 13.05 | ± 0.25 | 12.58 | ± 0.26 |
| H0 (km s-1 Mpc) | 71.7 | ± 1.5 | 72.7 | ± 1.4 | 73.6 | ± 1.9 |
| Ωk | –0.0033 | ± 0.0066 | 0.0021 | ± 0.0062 | 0.0016 | ± 0.0071 |
| w | –1.11 | ± 0.10 | –1.29 | ± 0.12 | –1.33 | ± 0.14 |
| Δχ2 | 0 | –12.0 | –9.3 | |||
Notes. The errors shown are the 1σ deviations from the mean value. We also show the Δχ2 values for the different models where 
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