The anisotropic Bianchi V cosmological model.

Details The anisotropic Bianchi V cosmological model. The anisotropic Bianchi V cosmological model.

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997ncimb.112.1217h&link_type=abstract

Nuovo Cimento B, Vol. 112B, No. 9, p. 1217 - 1226

Mathematics

Logic

2

Cosmological Models: Anisotropy

Scientific paper

One of the more important sub-sets of cosmological models is the generalization of the isotropic, negative-curvature, Friedmann-Robertson-Walker models to the anisotropic Bianchi V class. This class is the subject of continuing studies. In none of these cases has the cosmological constant been used. Motivated by the fact that a) if the cosmological constant exists it plays a major role in the evolution of the universe and b) recent determinations of the Hubble parameter imply an age for the universe substantially smaller than that for mature stars, the author has re-examined the Bianchi V model with cosmological constant included for both electromagnetic radiation and pressureless dust sources. He found that current astronomical data and the isotropy of the cosmic background microwave radiation do not rule out such a model.

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