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Unformatted text preview: the Sun's motion has been subtracted out leaving fluctuations that are thirty times smaller than the previous map. The faint microwave contribution of the Milky Way is clearly seen along the center. The Cygnus constellation is at left center, the Sagittarius constellation is at the center, and the Orion constellation is at right center. Below is a picture of the fluctuations in the background radiation when the Milky Way's contribution is subtracted out. It shows a comparison of the coarse resolution of COBE with the finer resolution of the Wilkinson Microwave Anisotropy Probe (WMAP). WMAP has over 30 times greater resolution than the COBE satellite. With that greater resolution WMAP is enabling us to learn the composition, geometry, and history of the universe, amount of matter in the universe, as well as, providing much tighter constraints on the models. Selecting the map will take you to the WMAP homepage in another window....
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- Fall '10
- Astronomy, wMAP, COBE, COBE satellite, microwave all-sky maps, galactic equator runs