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外文期刊>The Astrophysical journal
>Python I, II, and III Cosmic Microwave Background Anisotropy Measurement Constraints on Open and Flat-Λ Cold Dark Matter Cosmogonies
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Python I, II, and III Cosmic Microwave Background Anisotropy Measurement Constraints on Open and Flat-Λ Cold Dark Matter Cosmogonies
We use Python I, II, and III cosmic microwave background anisotropy data to constrain cosmogonies. We account for the Python beamwidth and calibration uncertainties. 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 combined Python data favor an open (spatially flat-Λ) model with Ω0 0.2 (0.1). At the 2 σ confidence level, model normalizations deduced from the combined Python data are mostly consistent with those drawn from the DMR, UCSB South Pole 1994, ARGO, MAX 4 and 5, White Dish, and SuZIE data sets.
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机译:我们使用Python I,II和III宇宙微波背景各向异性数据来约束宇宙。我们考虑了Python的束宽和校准不确定性。我们考虑开放和空间平坦的冷暗物质宇宙,非相对论质量密度参数Ω0在0.1-1范围内,重子质量密度参数ΩB在(0.005-0.029)h-2范围内,宇宙年龄t0在范围(10-20)吉尔。通过对除Ω0以外的所有参数进行边际化,合并后的Python数据支持使用Ω00.2(0.1)的开放(空间平坦Λ)模型。在2σ置信度水平上,从组合的Python数据推导出的模型归一化与从DMR,UCSB South Pole 1994,ARGO,MAX 4和5,White Dish和SuZIE数据集中得出的模型归一化基本一致。
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