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arXiv 1302.5633astro-ph.COhep-ph
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黑体的混合:通过Silk阻尼的光谱失真,将我们的暴胀视图增加到17 e倍

Mixing of blackbodies: Increasing our view of inflation to 17 e-folds with spectral distortions from Silk damping

Rishi Khatri

摘要:

在复合之前和复合过程中,早期宇宙中的丝绸阻尼消除了小尺度上宇宙微波背景(CMB)的各向异性。这种从各向异性中消失的功率出现在晶体管中,如y型、i型和μ型失真。因此,对CMB频谱畸变的观测将使我们能够获得关于原始功率谱的信息,其尺度对应于同向运动波数$8< k < 10^4 Mpc^{-1}$,当与CMB各向异性相结合时,增加了我们对暴胀的总体看法,跨越17个e折叠。这些畸变可以简单地理解为不同温度的黑体的混合和随后的所产生的畸变的康普顿化。

英文摘要:

Silk damping in the early Universe, before and during recombination, erases anisotropies in the cosmic microwave background (CMB) on small scales. This power, which disappears from anisotropies, appears in the monopole as y-type, i-type and μ-type distortions. The observation of the CMB spectral distortions will thus make available to us the information about the primordial power spectrum on scales corresponding to the comoving wavenumbers $8< k < 10^4 Mpc^{-1}$ increasing our total view of inflation, when combined with CMB anisotropies, to span 17 e-folds. These distortions can be understood simply as mixing of blackbodies of different temperatures and the subsequent comptonization of the resulting distortions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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