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>IllinoisUniversityCosmological ParametersSpecial<strong>Relativity</strong><strong>General</strong><strong>Relativity</strong>CosmologyThe ExpandingUniverseExpansion of theUniverseFriedmann-Robertson-WalkerCosmologyCosmologicalParametersSingleComponentUniversesNextH 0 = ȧaHubble parameterq 0 = −äa H−2 0deceleration parameterλ 1 λ 0⋆⋆t 1 t 0Redshift vs. Expansion1 + z ≡ λ 0= a(t 0)λ 1 a(t 1 )a(t 0 )a(t 1 ) = 1 + H 0(t 0 − t 1 ) + 1 2 (q 0 + 2)H 2 0(t 0 − t 1 ) 2 + . . .c○2004, 2007 G. Anderson <strong>Physics</strong> III – slide 34 / 37
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