标题： 原初等曲率重子模型中的微波背景各向异性：对宇宙学参数的约束 显示英文标题

标题： Microwave Background Anisotropies in Primeval Isocurvature Baryon Models: Constraints on the Cosmological Parameters

摘要： 我们对原初等曲率重子模型中的温度涨落\dtt 进行了最全面的预测，以查看这些模型是否与宇宙微波背景各向异性最近的数据一致。 更具体地说，我们计算了对应于南极和欧文山谷实验以及COBE卫星实验装置的\dtt 。 所预测的\dtt 的振幅通过COBE 10$^\circ$数据进行归一化。 在$n - \Omega_b$平面上给出了模型的约束条件，情况分为$\lambda_0=1-\Omega_b$（平坦模型）和$\lambda_0=0$（开放模型），其中$n$是熵涨落的原始谱指数，$\Omega_b$是当前重子密度参数。 我们的结果表明，对于任何合理的宇宙学参数集，PIB 模型都无法与当前观测结果相协调。 显示英文摘要

摘要： We have performed the most comprehensive predictions of the temperature fluctuations \dtt in the primeval isocurvature baryon models to see whether or not the models are consistent with the recent data on the cosmic microwave background anisotropies. More specifically, we computed the \dtt corresponding to the experimental set-up by the South-Pole and the Owens Valley experiments as well as the COBE satellite. The amplitudes of the predicted \dtt are normalized by means of the COBE 10$^\circ$ data. The resulting constraints on the models are presented on $n - \Omega_b$ plane in the case of $\lambda_0=1-\Omega_b$ (flat models) and $\lambda_0=0$ (open models), where $n$ is the primordial spectral index of entropy fluctuations and $\Omega_b$ is the present baryon density parameter. Our results imply that the PIB models cannot be reconciled with the current observations for any reasonable set of cosmological parameters.