[4097] Physics 316: Extragalactic Astronomy and Cosmology
Summary of WMAP Results

2003 Feb 11
Release of the first results from the Wilkinson Microwave Anisotropy Probe (WMAP).

• NASA Press Release
• WMAP Home Page
• LAMBDA: Legacy Archive for Microwave Background Data Analysis (incl science papers)

[Image: NASA] V.Brief summary: Age: 13.7 Gyr (+/-1%) Geometry: Flat Contents: Baryons 4% Dark Matter 23% Dark Energy 73% Expansion Rate: H0 = 71 km/s/Mpc (+/-5%) Theories: Dark energy: More like a cosmological constant than Quintessence. Inflation: Support from polarization data. CMB ripples made 3.8x105 yrs after BB. First Stars made 200x106 yrs after BB (!)