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Cosmology Lecture 10

Cosmology Lecture 10. The early universe. Our benchmark universe ( CDM). What is dark matter? What is dark energy? Does model hold in very young universe? How does structure form?. H 0 = 72 km s -1 Mpc -1.  0 = 1 - spatially flat   = 0.73  m = 0.27  m,baryon = 0.04

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Cosmology Lecture 10

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  1. CosmologyLecture 10 The early universe

  2. Our benchmark universe (CDM) What is dark matter? What is dark energy? Does model hold in very young universe? How does structure form? H0 = 72 km s-1 Mpc-1 0 = 1 - spatially flat  = 0.73 m = 0.27 m,baryon = 0.04 m,cold-dark-matter = 0.23 r = 10-4 Age of universe = 13.7 Gyr

  3. Matter dominated

  4. Inflation Galaxy clusters Quantum fluctuations

  5. Inflation and the horizon problem Out of causal contact New horizon Inflation Old horizon Thermal equilibrium

  6. Inflation

  7. Inflation and the flatness problem

  8. Phase transitions

  9. Big bang nucleosynthesis

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