TY - JOUR
T1 - Cosmological constraints from a combined analysis of the cluster mass function and microwave background anisotropies
AU - Melchiorri, Alessandro
AU - Bode, Paul
AU - Bahcall, Neta A.
AU - Silk, Joseph
N1 - Funding Information:
We acknowledge a grant from the Oxford-Princeton Research Partnership Initiative. A. M. is supported by the Particle Physics and Astronomy Research Council; P. B. is supported by the National Computational Science Alliance under NSF Cooperative Agreement ASC97-40300.
PY - 2003/3/20
Y1 - 2003/3/20
N2 - We present constraints on several cosmological parameters from a combined analysis of the most recent cosmic microwave background anisotropy data and the Sloan Digital Sky Survey cluster mass function. We find that the combination of the two data sets breaks several degeneracies among the parameters and provides the following constraints: σ8 = 0.76 ± 0.09, Ωm = 0.26-0.07+0.06, h = 0.66-0.06+0.05, n = 0.96 ± 0.05, and τC = 0.07-0.05+0.07.
AB - We present constraints on several cosmological parameters from a combined analysis of the most recent cosmic microwave background anisotropy data and the Sloan Digital Sky Survey cluster mass function. We find that the combination of the two data sets breaks several degeneracies among the parameters and provides the following constraints: σ8 = 0.76 ± 0.09, Ωm = 0.26-0.07+0.06, h = 0.66-0.06+0.05, n = 0.96 ± 0.05, and τC = 0.07-0.05+0.07.
KW - Cosmic microwave background
KW - Cosmological parameters
KW - Galaxies: clusters: general On-line material: color figure
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U2 - 10.1086/374584
DO - 10.1086/374584
M3 - Article
AN - SCOPUS:0041488849
SN - 0004-637X
VL - 586
SP - L1-L3
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 1 II
ER -