CMB Anisotropy Constraints on Open and Flat-Lambda CDM Cosmogonies from UCSB South Pole, ARGO, MAX, White Dish, and SuZIE Data

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dc.creatorRatra, Bharat
dc.creatorStompor, Radoslaw
dc.creatorGanga, Ken
dc.creatorRocha, Graca
dc.creatorSugiyama, Naoshi
dc.creatorGorski, Krzysztof M.
dc.date1999-01-04
dc.date.accessioned2026-07-07T11:34:09Z
dc.date.available2026-07-07T11:34:09Z
dc.descriptionWe use combinations of ten small-scale cosmic microwave background anisotropy data sets from the UCSB South Pole 1994, ARGO, MAX 4 and 5, White Dish and SuZIE experiments to constrain cosmogonies. We consider open and spatially-flat-Lambda cold dark matter cosmogonies. Marginalizing over all parameters but $Ω_0$, the combined data favors an Omega_0 simeq 1 for both open and flat-Lambda models. Excluding the smallest angular scale SuZIE data, an Omega_0 simeq 0.3 (1.0) open (flat-Lambda) model is favored. Considering only multi-frequency data with error bars consistent with sample variance and noise considerations, an Omega_0 simeq 0.1 (1) open (flat-Lambda) model is favored. For both open and flat-$Λ$ models, after marginalizing over all the other parameters, a lower Omega_B h^2 (sim 0.005) or younger (t_0 sim 10 Gyr) universe is favored. However, the data do not rule out other values of Omega_0 in the flat-Lambda model and other values of Omega_B h^2 in both models. (abriged)
dc.description31 pages, 8 figures, uses aaspp4.sty, accepted by ApJ
dc.identifierhttps://arxiv.org/abs/astro-ph/9901014
dc.identifierhttp://arxiv.org/abs/astro-ph/9901014
dc.identifierAstrophys.J.517:549,1999
dc.identifierdoi:10.1086/307236
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/198144
dc.subjectAstrophysics
dc.titleCMB Anisotropy Constraints on Open and Flat-Lambda CDM Cosmogonies from UCSB South Pole, ARGO, MAX, White Dish, and SuZIE Data
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