A Measurement of Ω from the North American Test Flight of Boomerang

1999/11/27 by A. Melchiorri, P. A. R. Ade, P. de Bernardis +25 · 26 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Radio Astronomy Observations and Technology #astro-ph #gr-qc

paper · pdf · doi:10.1086/312744

published as Astrophys.J. 536 (2000) L63-L66 · 4 pages, 3 figures LaTeX, emulateapj.sty

arxiv created 1999/11/27 · openalex publication_date 2000/06/20 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31

Abstract

We use the angular power spectrum of the cosmic microwave background, measured during the North American test flight of the Boomerang experiment, to constrain the geometry of the universe. Within the class of cold dark matter models, we find that the overall fractional energy density of the universe Omega is constrained to be 0.85</=Omega</=1.25 at the 68% confidence level. Combined with the COBE measurement, the data on degree scales from the Microwave Anisotropy Telescope in Chile, and the high-redshift supernovae data, we obtain new constraints on the fractional matter density and the cosmological constant.

Citations

• MADCAP - The Microwave Anisotropy Dataset Computational Analysis Package
• Measurements of Ω and Λ from 42 High‐Redshift Supernovae
• Isocurvature mechanism for structure formation
• UCSB South Pole 1994 Cosmic Microwave Background Anisotropy Measurement Constraints on Open and Flat‐Λ Cold Dark Matter Cosmogonies

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