WMAP-Recommended Parameters Constraints

The data made available through this page has been updated. The most recent version of this data may be accessed through /product/map/current/

The tables below contain the cosmological parameters recommended by the WMAP Team after the seven-year WMAP data release. Each table assumes a standard 6-parameter LCDM model accounting for the effects of gravitational lensing and the Sunyaev-Zeldovich effect. The first table gives constraints using only WMAP data, the second table additionally includes the BAO angular diameter distance measurement, and a local measurement of the Hubble constant. Readers interested in fundamental parameters beyond the standard 6 LCDM parameters should visit the Cosmological Parameter Table. Click on the graphic to retrieve a Postscript version.

Cosmological Parameters Plotter

Detailed Description and Mnemonic Listing

Parameters Matrix

A service of the HEASARC and of the Astrophysics Science Division at NASA/GSFC
Goddard Space Flight Center, National Aeronautics and Space Administration
HEASARC Director: Dr. Alan P. Smale
LAMBDA Director: Dr. Eric R. Switzer
NASA Official: Dr. Eric R. Switzer
Web Curator: Mr. Michael R. Greason