Reconstruction of CMB temperature anisotropies with primordial CMB induced polarization in galaxy clusters

淡江大學機構典藏 > 理學院 > 物理學系暨研究所 > 期刊論文 > Item 987654321/110079

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题名:	Reconstruction of CMB temperature anisotropies with primordial CMB induced polarization in galaxy clusters
作者:	Liu, Guo-Chin;Ichiki, Kiyotomo;Tashiro, Hiroyuki;Sugiyama, Naoshi
关键词:	cosmology;theory
日期:	2016-07-21
上传时间:	2017-03-23 02:10:38 (UTC+8)
出版者:	Oxford University Press
摘要:	Scattering of cosmic microwave background (CMB) radiation in galaxy clusters induces polarization signals determined by the quadrupole anisotropy in the photon distribution at the location of clusters. This ”remote quadrupole” derived from the measurements of the induced polarization in galaxy clusters provides an opportunity of reconstruction of local CMB temperature anisotropies. In this Letter we develop an algorithm of the reconstruction through the estimation of the underlying primordial gravitational potential, which is the origin of the CMB temperature and polarization fluctuations and CMB induced polarization in galaxy clusters. We found a nice reconstruction for the quadrupole and octopole components of the CMB temperature anisotropies with the assistance of the CMB induced polarization signals. The reconstruction can be an important consistency test on the puzzles of CMB anomaly, especially for the low quadrupole and axis of evil problems reported in WMAP and Planck data.
關聯:	Monthly Notices of the Royal Astronomical Society: Letters 460(1), pp.104-108
DOI:	10.1093/mnrasl/slw085
显示于类别:	[物理學系暨研究所] 期刊論文

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