Release Notes for the Cosmological Parameters Table
The data made available through this page has been updated. The most recent
version of this data may be accessed through
/product/map/current/
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)
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.
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: