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GR: Fachverband Gravitation und Relativitätstheorie
GR 17: Kosmologie II
GR 17.3: Vortrag
Freitag, 13. März 2009, 11:40–12:00, A214
Proof that Dark Energy Can Scale Like Matter; Full Determination of Dark Energy, Radiation, and Matter Components at Recombination and in the Present Epoch — •Christopher Pilot — Maine Maritime Academy, Castine, USA
We prove that dark energy can scale like matter, starting from the assumption that ρ1matter equals 3 x ρ1radiation, which is what is actually observed in the WMAP CMB at recombination. We find that Ω1radiation equals 7.2 percent, Ω1matter equals 21.7 percent and Ω1darkenergy equals 71.1 percent if ρdarkenergy scales as ρmatter where matter includes atomic and dark matter. In the present epoch this leads unequivocally to Ω0radiation equals .007%, Ω0matter equals 23.4% and Ω0darkenergy equals 76.6% where radiation consists of blackbody photons and neutrinos. If there is no scaling in the dark energy component, then we find that ρ1/ρ0 = 4.04 x 108; with matter-like scaling for dark energy we predict for the ratio of critical densities ρ1/ρ0 = 1.40 x 109.