| CMB istropic
universe isotropic |
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| WE observe small anisotropy |
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| (redshift/ blueshift on |
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| opposite sides of sky) |
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| Doppler shift due to earth’s |
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| motion through universe |
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| (radiation
field) |
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| Solar system 370 km/s towards Leo |
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| red => warmer |
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| blue
=> cooler |
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| Spatial
fluctuations in CMB on small angular scales |
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| information on inhomogeneities
that form galaxies |
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and clusters of galaxies |
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