• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Astrophysical journal >COBE CONSTRAINTS ON BARYON ISOCURVATURE MODELS
【24h】

COBE CONSTRAINTS ON BARYON ISOCURVATURE MODELS

机译：COBE约束BARYON等曲率模型

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We consider Bayesian constraints on standard isocurvature baryon models from the slope and normalization of the anisotropy power spectrum detected by the COBE DMR experiment in their 2 year maps. In conjunction with either the amplitude of matter fluctuations σ_8 or its slope, all open models are ruled out at greater than 95% confidence, whereas cosmological-constant dominated models are constrained to be highly ionized. By including the COBE FIRAS 95% confidence upper limit on spectral distortion under the assumption of collisional ionization, we further reduce the available parameter space for A models by excluding these highly ionized models. These constraints define a single remaining class of standard models which makes definite and testable predictions for degree-scale anisotropies and large-scale structure.
机译：我们通过COBE DMR实验在其两年图中检测到的各向异性功率谱的斜率和归一化，来考虑标准等曲率重子模型的贝叶斯约束。结合物质涨落幅度σ_8或其斜率，排除了所有开放模型的置信度大于95％，而受宇宙论约束的模型被高度电离。通过在假设碰撞电离的情况下将COBE FIRAS频谱失真的置信度上限包括在95％，我们通过排除这些高度电离的模型进一步减少了A模型的可用参数空间。这些约束条件定义了标准模型的剩余唯一类别，可以对度尺度各向异性和大规模结构进行确定且可测试的预测。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号