title: Joint cosmic microwave background and weak lensing analysis: constraints on cosmological parameters.
abstract: We use cosmic microwave background (CMB) observations together with the red-sequence cluster survey weak lensing results to derive constraints on a range of cosmological parameters. This particular choice of observations is motivated by their robust physical interpretation and complementarity. Our combined analysis, including a weak nucleosynthesis constraint, yields accurate determinations of a number of parameters including the amplitude of fluctuations sigma(8)=0.89+/-0.05 and matter density Omega(m)=0.30+/-0.03. We also find a value for the Hubble parameter of H(0)=70+/-3 km s(-1) Mpc(-1), in good agreement with the Hubble Space Telescope key-project result. We conclude that the combination of CMB and weak lensing data provides some of the most powerful constraints available in cosmology today.
authors.affiliation: CITA, University of Toronto, 60 St. George Street, Toronto, M5S 3H8, Ontario, Canada. contaldi@cita.utoronto.ca
authors.forename: Carlo R
authors.initials: CR
authors.lastname: Contaldi
authors.forename: Henk
authors.initials: H
authors.lastname: Hoekstra
authors.forename: Antony
authors.initials: A
authors.lastname: Lewis