Cosmology - Cosmology The large-scale structure of the...

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Cosmology The large-scale structure of the universe The beginning and the end
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What do I mean…. Large Scale ?
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Alice laughed: There's no use trying," she said; "one can't believe impossible things." "I daresay you haven't had much practice," said the Queen. "When I was younger, I always did it for half an hour a day. Why, sometimes I've believed as many as six impossible things before breakfast. ---Lewis Carroll , Alice in Wonderland
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Epochs
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Geological Epochs
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Cosmological epochs in the early universe The Planck epoch Grand unification epoch The Inflationary epoch The Quark epoch Nuclear epoch Decoupling epoch
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Let’s star at the beginning ….
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George Gamow: 1904 – 1968 proposed the BB in 1948 Evidence for a Big Bang Expansion General relativity Proportion of light elements Cosmic microwave background
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The Cosmological Principle On the large-scale the universe is homogenous and isotropic
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Hubble’s Law (1929) indicates the universe is expanding. We can use this to estimate when the expansion began. v = H d Uncertainty in H: 50 km/sec/Mpc – 100 km/sec/Mpc
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: The Big Bang was a primordial fireball continuing to expand into a bigger volume It is not this. WRONG !!
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This note was uploaded on 03/30/2008 for the course PHYS 1055 taught by Professor Rkkeinigs during the Spring '08 term at Virginia Tech.

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Cosmology - Cosmology The large-scale structure of the...

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