Imaging cosmic polarization rotation

被引：4
|
作者：
Contaldi, Carlo R. [1 ]
机构：
[1] Imperial Coll London, Blackett Lab, Theoret Phys Grp, South Kensington Campus, London SW7 2AZ, England
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2016年 / 25卷 / 11期
关键词：
Cosmic background radiation; cosmology; theory; polarization; techniques; polarimetric; B-MODE POLARIZATION; MICROWAVE BACKGROUND POLARIZATION; POWER SPECTRUM; GRAVITY-WAVES; ANISOTROPY; STATISTICS; SIGNATURE; PROBE;
D O I：
10.1142/S0218271816400149
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We introduce a method to isolate the contribution of parity-violating modes to the peak constrained correlation function. This method can be used as a local estimate of polarization rotation. We test this method using simulations and by applying it to Planck maps [P. A. R. Ade et al., arXiv:1502.01589 astro.ph.co]. We obtain a constraint on the monopole of the polarization rotation angle alpha = 0.31 +/- 0.23.
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页数：14
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