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AMiBA星系团观测中Sunyaev-Zel 'dovich衰变的污染

Contamination of the Central Sunyaev--Zel'dovich Decrements in AMiBA Galaxy Cluster Observations

Guo-Chin Liu, Mark Birkinshaw, Jiun-Huei Proty Wu, Paul T. P. Ho, Chih-Wei Locutus Huang, Yu-Wei Liao, Kai-Yang Lin, Sandor M. Molnar, Hiroaki Nishioka, Patrick… 展开作者

Guo-Chin Liu, Mark Birkinshaw, Jiun-Huei Proty Wu, Paul T. P. Ho, Chih-Wei Locutus Huang, Yu-Wei Liao, Kai-Yang Lin, Sandor M. Molnar, Hiroaki Nishioka, Patrick M. Koch, Keiichi Umetsu, Fu-Cheng Wang, Pablo Altamirano, Chia-Hao Chang, Shu-Hao Chang, Su-Wei Chang, Ming-Tang Chen, Chih-Chiang Han, Yau-De Huang, Yuh-Jing Hwang, Homin Jiang, Michael Kesteven, Derek Kubo, Chao-Te Li, Pierre Martin-Cocher, Peter Oshiro, Philippe Raffin, Tashun Wei, Warwick Wilson

摘要:

本文研究了Y. T. 2007年期间Lee阵列对微波背景各向异性的研究随着基线的使用范围,我们发现,最大的影响(订单13%-50%的中央SZ通量密度)来自初级各向异性的宇宙微波背景,并超过了热噪声在所有六种情况下。来自离散射电源的污染估计在中心SZ通量密度的(3%-60%)水平。我们使用这些污染源的统计数据来估计和校正这些集群的SZ效应的测量误差。

英文摘要:

We investigate the contamination of the Sunyaev--Zel'dovich (SZ) effect for six galaxy clusters, A1689, A1995, A2142, A2163, A2261, and A2390, observed by the Y. T. Lee Array for Microwave Background Anisotropy during 2007. With the range of baselines used, we find that the largest effect (of order 13%-50% of the central SZ flux density) comes from primary anisotropies in the cosmic microwave background and exceeds the thermal noise in all six cases. Contamination from discrete radio sources is estimated to be at a level of (3%-60%) of the central SZ flux density. We use the statistics of these contaminating sources to estimate and correct the errors in the measured SZ effects of these clusters.

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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