OVRO CMB anisotropy measurement constraints on flat-λ and open CDM cosmogonies

Mukherjee, Pia ; Souradeep, Tarun ; Ratra, Bharat ; Sugiyama, Naoshi ; Gorski, Krzsztof M. (2003) OVRO CMB anisotropy measurement constraints on flat-λ and open CDM cosmogonies Modern Physics Letters A, 18 (17). pp. 1145-1155. ISSN 0217-7323

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Official URL: http://www.worldscientific.com/doi/abs/10.1142/S02...

Related URL: http://dx.doi.org/10.1142/S0217732303011022

Abstract

We use Owens Valley Radio Observatory (OVRO) cosmic microwave background (CMB) anisotropy data to constrain cosmological parameters. We account for the OVRO beamwidth and calibration uncertainties, as well as the uncertainty induced by the removal of non-CMB foreground contamination. We consider open and spatially-flat-Λ cold dark matter cosmogonies, with nonrelativistic-mass density parameter Ω0 in the range 0.1–1, baryonic-mass density parameter ΩB in the range (0.005–0.029)h-2, and age of the universe t0 in the range (10–20) Gyr. Marginalizing over all parameters but Ω0, the OVRO data favors an open (spatially-flat-Λ) model with Ω0≃ 0.33 (0.1). At the 2σ confidence level model normalizations deduced from the OVRO data are mostly consistent with those deduced from the DMR, UCSB South Pole 1994, Python I-III, ARGO, MAX 4 and 5, White Dish, and SuZIE data sets.

Item Type:Article
Source:Copyright of this article belongs to World Scientific Publishing Company.
Keywords:Cosmic Microwave Background — Cosmology; Observations — Large-Scale Structure of the Universe
ID Code:107612
Deposited On:26 Dec 2017 07:06
Last Modified:26 Dec 2017 07:06

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