Table 1.
One sigma posterior likelihoods on the matter density ΩM and the additional free parameter for various flat models containing matter plus a cosmological constant, and a nonlinear matter Lagrangian with various different values of n.
| Model | H0 | Model parameter | ΩM |
|---|---|---|---|
| n = 1, ΩQ | Fixed | (−0.7 ± 0.5) × 10−3 | 0.28 ± 0.01 |
| n = 1, ΩQ | Marginalized | (−1.0 ± 0.6) × 10−3 | 0.31 ± 0.02 |
| n = 1, Q1 | Fixed | (−2.6 ± 1.7) × 10−3 | 0.28 ± 0.01 |
| n = 1, Q1 | Marginalized | (−3.3 ± 1.8) × 10−3 | 0.31 ± 0.02 |
| n = 1/2, Q1/2 | Fixed | (−4.1 ± 3.4) × 10−2 | 0.30 ± 0.03 |
| n = 1/2, Q1/2 | Marginalized | (−5.6 ± 3.5) × 10−2 | 0.33 ± 0.04 |
| n = 0 (ΛCDM) | Fixed | N/A | 0.27 ± 0.01 |
| n = 0 (ΛCDM) | Marginalized | N/A | 0.28 ± 0.02 |
Notes. The constraints come from the combination of Pantheon supernova and Hubble parameter measurements, and are listed for fixed or analytically marginalized values of H0.
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