Atacama Cosmology Telescope: Component-separated maps of CMB temperature and the thermal Sunyaev-Zel’dovich effect
Atacama Cosmology Telescope: Component-separated maps of CMB temperature and the thermal Sunyaev-Zel’dovich effect
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DOI：
10.1103/physrevd.102.023534
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发表时间：
2020-07
影响因子：
5
通讯作者：
M. Madhavacheril;J. Hill;S. Naess;G. Addison;S. Aiola;T. Baildon;N. Battaglia;R. Bean;J. Bond;E. Calabrese;Victoria Calafut;Steve K. Choi;O. Darwish;M. Devlin;J. Dunkley;R. Dunner;S. Ferraro;P. Gallardo;M. Halpern;Dongwon Han;M. Hasselfield;M. Hilton;A. Hincks;R. Hlovzek;S. Ho;K. Huffenberger;J. Hughes;B. Koopman;A. Kosowsky;M. Lokken;T. Louis;M. Lungu;Amanda Macinnis;L. Maurin;J. McMahon;K. Moodley;F. Nati;M. Niemack;L. Page;B. Partridge;N. Robertson;N. Sehgal;E. Schaan;A. Schillaci;B. Sherwin;C. Sif'on;S. Simon;D. Spergel;S. Staggs;E. Storer;A. V. Engelen;E. Vavagiakis;Edward J. Wollack;Zhilei Xu
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作者：
M. Madhavacheril;J. Hill;S. Naess;G. Addison;S. Aiola;T. Baildon;N. Battaglia;R. Bean;J. Bond;E. Calabrese;Victoria Calafut;Steve K. Choi;O. Darwish;M. Devlin;J. Dunkley;R. Dunner;S. Ferraro;P. Gallardo;M. Halpern;Dongwon Han;M. Hasselfield;M. Hilton;A. Hincks;R. Hlovzek;S. Ho;K. Huffenberger;J. Hughes;B. Koopman;A. Kosowsky;M. Lokken;T. Louis;M. Lungu;Amanda Macinnis;L. Maurin;J. McMahon;K. Moodley;F. Nati;M. Niemack;L. Page;B. Partridge;N. Robertson;N. Sehgal;E. Schaan;A. Schillaci;B. Sherwin;C. Sif'on;S. Simon;D. Spergel;S. Staggs;E. Storer;A. V. Engelen;E. Vavagiakis;Edward J. Wollack;Zhilei Xu
作者：Madhavacheril， MS；山,JC;一样,年代;艾迪生,通用电气;Aiola年代;Baildon T;巴塔利亚,N;豆,R;键,小;花茎甘蓝,E;Calafut V;崔,SK;达尔维什O;达塔,R;Devlin,乔丹;Dunkley J;讨债人,R;费拉罗,年代;盖拉多,爸爸;Gluscevic V;Halpern, M;汉族,D;Hasselfield, M;希尔顿,M;Hincks广告;HloŽek, R;Ho SPP;Huffenberger公里;休斯,摩根;•库普曼,BJ;Kosowsky,;Lokken, M;路易,T;Lungu, M;难以估量,;Maurin L;麦克马洪,JJ;Moodley K;Nati F;Niemack博士;页面,拉;鹧鸪,B;Robertson N;Sehgal N;Schaan E;Schillaci,;舍温,双相障碍;Sifon C;西蒙,SM;Spergel DN;以前,圣;仓库保管员,呃;Van Engelen， A；Vavagiakis EM;Wollack EJ;摘要：©2020美国物理学会。对宇宙微波背景（CMB）中许多信号的优化分析需要对微波天空中的各个分量进行地图级提取，而不是单独在功率谱级进行测量。迄今为止，CMB分析中几乎所有的地图级成分分离都是完全使用卫星数据进行的。在本文中，我们实现了一种基于内部线性组合（ILC）方法的分量分离方法，我们设计了这种方法，以最佳地考虑地基CMB实验中经常发现的各向异性噪声（在二维傅立叶域中）。利用这种方法，我们结合了普朗克卫星和阿塔卡马宇宙望远镜偏振计（ACTPol）的多频数据，构建了第一个广域（≈2100 sq.）度)，CMB温度各向异性和热Sunyaev-Zel'dovich （tSZ）效应的弧分辨率分量分离图，这些效应来自于CMB光子从热电离气体中产生的逆康普顿散射。我们的ILC管道允许对各种污染信号进行明确的去投影，包括对宇宙红外背景（CIB）光谱能量分布的修正黑体近似。清理后的CMB地图将为CMB透镜重建、运动学SZ互相关和原始非高斯性研究提供有用的资源。tSZ地图将通过与光晕目录的相互关联来研究星系、星团和星团的压力分布，并通过CIB投影控制尘埃污染。本文中描述的数据产品可以在LAMBDA上获得。
Author(s): Madhavacheril, MS; Hill, JC; Naess, S; Addison, GE; Aiola, S; Baildon, T; Battaglia, N; Bean, R; Bond, JR; Calabrese, E; Calafut, V; Choi, SK; Darwish, O; Datta, R; Devlin, MJ; Dunkley, J; Dunner, R; Ferraro, S; Gallardo, PA; Gluscevic, V; Halpern, M; Han, D; Hasselfield, M; Hilton, M; Hincks, AD; HloŽek, R; Ho, SPP; Huffenberger, KM; Hughes, JP; Koopman, BJ; Kosowsky, A; Lokken, M; Louis, T; Lungu, M; Macinnis, A; Maurin, L; McMahon, JJ; Moodley, K; Nati, F; Niemack, MD; Page, LA; Partridge, B; Robertson, N; Sehgal, N; Schaan, E; Schillaci, A; Sherwin, BD; Sifon, C; Simon, SM; Spergel, DN; Staggs, ST; Storer, ER; Van Engelen, A; Vavagiakis, EM; Wollack, EJ; Xu, Z | Abstract: © 2020 American Physical Society. Optimal analyses of many signals in the cosmic microwave background (CMB) require map-level extraction of individual components in the microwave sky, rather than measurements at the power spectrum level alone. To date, nearly all map-level component separation in CMB analyses has been performed exclusively using satellite data. In this paper, we implement a component separation method based on the internal linear combination (ILC) approach which we have designed to optimally account for the anisotropic noise (in the 2D Fourier domain) often found in ground-based CMB experiments. Using this method, we combine multifrequency data from the Planck satellite and the Atacama Cosmology Telescope Polarimeter (ACTPol) to construct the first wide-area (≈2100 sq. deg.), arcminute-resolution component-separated maps of the CMB temperature anisotropy and the thermal Sunyaev-Zel'dovich (tSZ) effect sourced by the inverse-Compton scattering of CMB photons off hot, ionized gas. Our ILC pipeline allows for explicit deprojection of various contaminating signals, including a modified blackbody approximation of the cosmic infrared background (CIB) spectral energy distribution. The cleaned CMB maps will be a useful resource for CMB lensing reconstruction, kinematic SZ cross-correlations, and primordial non-Gaussianity studies. The tSZ maps will be used to study the pressure profiles of galaxies, groups, and clusters through cross-correlations with halo catalogs, with dust contamination controlled via CIB deprojection. The data products described in this paper are available on LAMBDA.