Volume 447, Number 2, February IV 2006
|Page(s)||413 - 418|
|Section||Cosmology (including clusters of galaxies)|
|Published online||07 February 2006|
From Hubble diagrams to scale factors
Centre de Physique Théorique, CNRS – Luminy, Case 907, 13288 Marseille Cedex 9, France e-mail: email@example.com
2 Centre de Physique des Particules de Marseille, CNRS – Luminy, Case 907, 13288 Marseille Cedex 9, France e-mail: firstname.lastname@example.org
Accepted: 23 September 2005
Context. Aims.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. Methods.Our theoretical input is minimal: Einstein's kinematics and maximally symmetric universes. Results.Present supernova data yield , i.e. . We attempt to quantify the monotonicity constraint and do not see any indication of non-monotonicity. Conclusions.
© ESO, 2006
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