qc / 0 60 10 40 v 1 1 1 Ja n 20 06 Tilted Bianchi VII 0 cosmologies – the radiation bifurcation
نویسندگان
چکیده
We derive the late-time behaviour of tilted Bianchi VII 0 cosmologies with an irro-tational radiation fluid as source, and give the asymptotic form of the general solution as t → +∞, making comparisons with the dust-filled models. At first sight the radiation-filled models appear to approximate the flat FL model at late times, since the Hubble-normalized shear and the tilt tend to zero and the density parameter tends to one. The Hubble-normalized Weyl curvature diverges, however, indicating that physically significant anisotropy remains. We also discuss the influence of a cosmological constant on this phenomenon.
منابع مشابه
Tilted Bianchi VII 0 cosmologies – the radiation bifurcation
We derive the late-time behaviour of tilted Bianchi VII 0 cosmologies with an irro-tational radiation fluid as source, and give the asymptotic form of the general solution as t → +∞, making comparisons with the dust-filled models. At first sight the radiation-filled models appear to approximate the flat FL model at late times, since the Hubble-normalized shear and the tilt tend to zero and the ...
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