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

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

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

Author(s) -

A. Melchiorri,

P. A. R. Ade,

P. de Bernardis,

J. J. Bock,

J. Borrill,

A. Boscaleri,

B. P. Crill,

G. De Troia,

P. Farese,

Pedro G. Ferreira,

K. Ganga,

G. de Gasperis,

M. Giacometti,

V. V. Hristov,

A. H. Jaffe,

A. E. Lange,

S. Masi,

P. Mauskopf,

Leo Miglio,

C. B. Netterfield,

E. Pascale,

F. Piacentini,

G. Romeo,

J. E. Ruhl,

N. Vittorio

Publication year - 2000

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/312744

Subject(s) - cosmic microwave background , physics , dark energy , redshift , astrophysics , omega , cold dark matter , spectral density , universe , cosmological constant , anisotropy , telescope , astronomy , cosmology , theoretical physics , optics , galaxy , quantum mechanics , statistics , mathematics

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.

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