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arXiv 1302.6080astro-ph.CO
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弯曲情况下CMB的大规模异常

Large-scale anomalies of the CMB in the curvaton scenario

Hao Liu, Anne Mette Frejsel, Pavel Naselsky

摘要:

我们扩展了Erickcek等人(2008,2009)提出的曲率场方案,以解释宇宙微波背景(CMB)的奇偶多极不对称性(也称为宇称不对称性,(Kim & Naselsky 2010))和功率各向异性如何由曲率场产生,曲率场作为暴胀时期绝热扰动谱的额外分量。我们的工作为CMB大尺度不对称问题提供了一个可能的宇宙学解释。

英文摘要:

We extend the curvaton scenario presented by Erickcek et al. (2008, 2009), to explain how the even-odd multipole asymmetry of the Cosmic Microwave Background (CMB) (also called parity asymmetry, (Kim & Naselsky 2010)) and power anisotropies can be generated by the curvaton field, which acts as an extra component to the spectrum of adiabatic perturbations in the inflationary epoch. Our work provides a possible cosmic explanation to the CMB large-scale asymmetry problems besides systematics and unknown residuals.

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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