SIMBAD references

2006A&A...447..413S - Astronomy and Astrophysics, volume 447, 413-418 (2006/2-4)

From Hubble diagrams to scale factors.

SCHUECKER T. and TILQUIN A.

Abstract (from CDS):

We study the image of the transform from scale parameters to Hubble diagrams and present a lower bound on the radius of the universe today a0 and a monotonicity constraint on the Hubble diagram. Our theoretical input is minimal: Einstein's kinematics and maximally symmetric universes. Present supernova data yield a0>1.2x1026, i.e. Ωk0>-1.29. We attempt to quantify the monotonicity constraint and do not see any indication of non-monotonicity.

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Journal keyword(s): cosmological parameters

Simbad objects: 0

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