2001/05/20 by Ofer Lahav, Lahav, Ofer
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0105352
Invited talk at "Asrtrophysical Ages and Time Scales", Hawaii, 2001, APS Conference Series, Eds. T. von Hippel, M. Manset, C. Simpson, in press, 10 pages, 2 figures
arxiv created 2001/05/20 · arxiv updated 2009/12/01
Analyses of various cosmological probes, including the latest Cosmic Microwave Background anisotropies, the 2dF Galaxy Redshift Survey and Cepheid-calibrated distance indicators suggest that the age of expansion is 13 ± 3 Gyr. We discuss some statistical aspects of this estimation, and we also present results for joint analysis of the latest CMB and Cepheid data by utilizing `Hyper-Parameters'. The deduced age of expansion might be uncomfortably close to the age of the oldest Globular Clusters, in particular if they formed relatively recently.