Cosmological constraints from a combined analysis of the cluster mass function and microwave background anisotropies

Alessandro Melchiorri, Paul Bode, Neta A. Bahcall, Joseph Silk

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)L1-L3
JournalAstrophysical Journal
Volume586
Issue number1 II
DOIs
StatePublished - Mar 20 2003

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Cosmic microwave background
  • Cosmological parameters
  • Galaxies: clusters: general On-line material: color figure

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