The Cosmic Microwave Background and Observational Convergence in the Omega_m - Omega_lambda Plane

Details The Cosmic Microwave Background and Observational Convergence in the Omega_m - Omega_lambda Plane The Cosmic Microwave Background and Observational Convergence in the Omega_m - Omega_lambda Plane

1998-05-27

arxiv.org/abs/astro-ph/9805326v2

Astrophys.J. 505 (1998) L69

Astronomy and Astrophysics

Astrophysics

This version conforms to the version accepted by the Astrophysical Journal Letters. Minor revisions include references, typos

Scientific paper

10.1086/311613

I use the most recent cosmic microwave background (CMB) anisotropy measurements to constrain the leading cold dark matter models in the Omega_m - Omega_lambda plane. A narrow triangular region is preferred. This triangle is elongated in such a way that its intersection with even conservative versions of recent supernovae, cluster mass-to-light ratios and double radio source constraints, is small and provides the current best limits in the Omega_m - Omega_lambda plane: Omega_lambda = 0.62 +/- 0.16 and Omega_m = 0.24 +/- 0.10. This complementarity between CMB and other observations rules out Omega_lambda = 0 models at more than the 99% confidence level.

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