Release Notes for the Cosmological Parameters Table

• Seven-Year Parameters Table
  • 18 November 2010
    • Six additional sets of parameter chains were released for three models (ΛCDM+MNU, ΛCDM+NREL, and WCDM) and two data sets (WMAP and WMAP+H0). Version 4.1 of the WMAP likelihood software and RECFAST 1.5 were used.
  • 15 January 2010
    • The fourth data release parameters table.

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• Five-Year Parameters Table
  • 18 March 2008
    • Updated secondary parameters for models containing massive neutrinos. The initial release had an error in the derivation of the Hubble constant for these models (of order 2 km/s/Mpc), so secondary parameters that depend on H0 had a small error.
  • February 2008
    • The third data release parameters table.

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• Three-Year Parameters Table
  • 25 January 2007
    • The best-fit matter power spectra, P(k), are provided for all the supported model/dataset combinations in the table. Each of these files has two columns. The first column is k/h in units of Mpc^-1. The second column is the linear matter power spectrum P(k), defined such that the variance is:
      
      σ² = (2π)^-3 ∫d³k P(k)
  • 12 January 2007
    • Three of the four new chains (lcdm/all, lcdm+sz=0/wmap, m2phi2/wmap) were updated by adding a constant offset to the log likelihood to bring them into agreement with the convention adopted with the other chains.
  • 10 January 2007
    • All of the entries were updated with better-converged chains in mid-2006. These are denoted "v2p1" chains in the Table. The results of this reprocessing did not materially affect any cosmological conclusions.
    • The following table entries have been updated with new parameter values and chains to reflect the changes in the low-l likelihood and the point source correction. These are denoted "v2p2" in the Table entries.
      
      • lcdm/wmap
      • lcdm/all
      • lcdm+sz=0/wmap
      • m2phi2/wmap (new)