Table 2.
One sigma posterior likelihoods on the matter density ΩM and the additional free parameter Qn for various flat models containing matter plus a cosmological constant, and a nonlinear matter Lagrangian with various different values of n.
| Model | Qn | ΩM |
|---|---|---|
| n = 1 | (−4.1 ± 1.5) × 10−3 | 0.30 ± 0.01 |
| n = 1/2 | (−7.5 ± 3.0) × 10−2 | 0.33 ± 0.03 |
Notes. The constraints come from the combination of Union2.1 supernova and Hubble parameter measurements with a fixed H0 = 70 km s−1 Mpc−1.
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