A measurement of Omega from the North American test flight of Boomerang

Journal Article · Mon Nov 01 04:00:00 EST 1999 · Astrophysical Journal

OSTI ID:797823

Melchiorri, A ^[1]; Ade, P A.R.; De Bernardis, P; Bock, J J; Borrill, J; Boscaleri, A; Crill, B P; De Troia, G; Farese, P; Ferreira, P G; Ganga, K; de Gasperis, G; Giacometti, M; Hristov, V V; Jaffe, A H; Lange, A E; Masi, S; Mauskopf, P D; Miglio, L; Netterfield, C B ; Pascale, E; Piacentini, F; Romeo, G; Ruhl, J E; Vittorio, N

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1. LBNL Library

We use the 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 the overall fractional energy density of the universe, Omega, is constrained to be 0.85 < or = Omega < or = 1.25 at the 68 percent confidence level. Combined with the COBE measurement and the high redshift supernovae data we obtain new constraints on the fractional matter density and the cosmological constant.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: USDOE Director, Office of Science; National Aeronautics and Space Administration (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 797823
• Report Number(s): LBNL--44601
• Journal Information: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 2 PT2 Vol. 536; ISSN ASJOAB; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC MICROWAVE BACKGROUND ANISOTROPY MEASUREMENTS POWER SPECTRUM
COSMOLOGICAL CONSTANT
ENERGY DENSITY
GEOMETRY
NONLUMINOUS MATTER
SUPERNOVAE
UNIVERSE