Lecture 05: General Relativity - Physics & Astronomy - Northeastern ...
Lecture 05: General Relativity - Physics & Astronomy - Northeastern ...
Lecture 05: General Relativity - Physics & Astronomy - Northeastern ...
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<strong>Northeastern</strong>IllinoisUniversitySingle Component Universes IISpecial<strong>Relativity</strong><strong>General</strong><strong>Relativity</strong>CosmologyThe ExpandingUniverseExpansion of theUniverseFriedmann-Robertson-WalkerCosmologyCosmologicalParametersSingleComponentUniversesNextρ ∝ a(t) ∝ t 0 äa −4 t 1/2 1 2 H−1 0 < 0 radiationa −3 t 2/3 2 3 H−1 0 < 0 mattera −2 , 0 t H −10 = 0 curvaturea 0 e Ht > 0 vacuumc○2004, 2007 G. Anderson <strong>Physics</strong> III – slide 36 / 37
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