Large-scale anomalies of the CMB in the curvaton scenario

被引：12
|
作者：
Liu, Hao [1 ,2 ]
Frejsel, Anne Mette
Naselsky, Pavel
机构：
[1] Niels Bohr Inst, Blegdamsvej 17, DK-2100 Copenhagen, Denmark
[2] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2013年 / 07期
基金：
中国国家自然科学基金;
关键词：
inflation; non-gaussianity; CMBR theory; CMBR experiments; PROBE WMAP OBSERVATIONS; DATA RELEASE; SKY MAPS; MICROWAVE; ASYMMETRIES; ISOTROPY; SPOT;
D O I：
10.1088/1475-7516/2013/07/032
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We extend the curvaton scenario presented by Erickcek et al. [1, 2], to explain how the even-odd multipole asymmetry of the Cosmic Microwave Background (CMB) (also called parity asymmetry, [3, 4]) 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.
引用
收藏
页数：14
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