Constraints on the CMB temperature evolution using multiband measurements of the Sunyaev–Zel'dovich effect with the South Pole Telescope
Constraints on the CMB temperature evolution using multiband measurements of the Sunyaev–Zel'dovich effect with the South Pole Telescope
复制标题
使用南极望远镜对 Sunyaev-Zeldovich 效应进行多波段测量来限制 CMB 温度演化
DOI：
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复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
A. Zenteno
中科院分区：
文献类型：
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作者：
A. Saro;J. Liu;J. Mohr;K. Aird;M. Ashby;M. Bayliss;B. Benson;B. Benson;L. Bleem;L. Bleem;S. Bocquet;M. Brodwin;J. Carlstrom;J. Carlstrom;C. Chang;C. Chang;I. Chiu;H. Cho;A. Clocchiatti;T. Crawford;A. Crites;T. Haan;S. Desai;J. Dietrich;M. Dobbs;K. Dolag;J. Dudley;R. Foley;D. Gangkofner;E. George;M. Gladders;Anthony H. Gonzalez;N. Halverson;C. Hennig;J. Hlavacek;W. Holzapfel;J. Hrubeš;C. Jones;R. Keisler;Adrian T. Lee;Adrian T. Lee;E. Leitch;M. Lueker;M. Lueker;D. Luong;A. Mantz;D. Marrone;M. Mcdonald;J. McMahon;J. Mehl;S. Meyer;L. Mocanu;T. Montroy;S. Murray;D. Nurgaliev;S. Padin;S. Padin;A. Patej;C. Pryke;C. Reichardt;A. Rest;J. Ruel;J. Ruhl;B. Saliwanchik;J. Sayre;K. Schaffer;K. Schaffer;E. Shirokoff;E. Shirokoff;H. Spieler;B. Stalder;Z. Staniszewski;A. Stark;K. Story;A. V. Engelen;K. Vanderlinde;J. Vieira;J. Vieira;A. Vikhlinin;R. Williamson;O. Zahn;A. Zenteno
宇宙微波背景温度的绝热演化是标准宇宙学的一个关键预测。我们用南极望远镜测量太阳-泽多维奇效应的光谱，研究了T(Z)=T_0(1+z)^(1−α)形式的CMB温度与预期绝热演化的偏差。我们提出了一种方法，利用在95和150 GHz处测量的Sunyaev-Zel‘dovich信号的比率来约束CMB的温度。我们使用一组新的流体动力学模拟对星团的模拟观测证明了这种方法提供了无偏的结果。我们将这种方法应用于158SPT选择的团簇样本，其红移范围为0.017；z<；1.35，测得α=0.017^(+0.030)_(−0.028)，与标准模型预测的α=0一致。结合其他已发表的结果，我们发现α=0.005±0.012，比已发表的约束条件提高了∼10% %。这一测量也对暗能量衰变模型中的有效状态方程w_(Ef)=−0.994±0.010提供了很强的约束。
The adiabatic evolution of the temperature of the cosmic microwave background (CMB) is a key prediction of standard cosmology. We study deviations from the expected adiabatic evolution of the CMB temperature of the form T(z) = T_0(1 + z)^(1 − α) using measurements of the spectrum of the Sunyaev–Zel'dovich effect with the South Pole Telescope (SPT). We present a method for using the ratio of the Sunyaev–Zel'dovich signal measured at 95 and 150 GHz in the SPT data to constrain the temperature of the CMB. We demonstrate that this approach provides unbiased results using mock observations of clusters from a new set of hydrodynamical simulations. We apply this method to a sample of 158 SPT-selected clusters, spanning the redshift range 0.05 < z < 1.35, and measure α=0.017^(+0.030)_(−0.028), consistent with the standard model prediction of α = 0. In combination with other published results, we find α = 0.005 ± 0.012, an improvement of ∼10 per cent over published constraints. This measurement also provides a strong constraint on the effective equation of state in models of decaying dark energy w_(eff) = −0.994 ± 0.010.
南极望远镜巡天第一个 178 度2 的 X 射线观测中 SUNYAEVâZELDovich 选定星团的宇宙学约束
DOI：
10.1088/0004-637x/763/2/147
发表时间：
2013
期刊：
The Astrophysical Journal
影响因子：
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作者：
B. A. Benson
通讯作者：
B. A. Benson
DOI：
10.1088/0004-637x/722/2/1180
发表时间：
2010-03
期刊：
The Astrophysical Journal
影响因子：
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作者：
F. W. High;B. Stalder;J. Song;P. Ade;K. Aird;S. Allam;R. Armstrong;W. Barkhouse;B. Benson;B. Benson;E. Bertin;Suman Bhattacharya;L. Bleem;M. Brodwin;E. Buckley-Geer;J. Carlstrom;P. Challis;C. Chang;T. Crawford;A. Crites;T. Haan;S. Desai;M. Dobbs;J. Dudley;R. Foley;E. George;M. Gladders;N. Halverson;M. Hamuy;S. Hansen;G. Holder;W. Holzapfel;J. Hrubeš;M. Joy;R. Keisler;Adrian T. Lee;Adrian T. Lee;E. Leitch;Huan Lin;Yen-Ting Lin;A. Loehr;M. Lueker;D. Marrone;J. McMahon;J. McMahon;J. Mehl;S. Meyer;J. J. Mohr-J.;T. Montroy;N. Morell;C. Ngeow;S. Padin;T. Plagge;T. Plagge;C. Pryke;C. Reichardt;A. Rest;J. Ruel;J. Ruhl;K. Schaffer;L. Shaw;L. Shaw;E. Shirokoff;R. C. Smith;H. Spieler;Z. Staniszewski;A. Stark;C. Stubbs;D. Tucker;K. Vanderlinde;J. Vieira;R. Williamson;W. M. Wood-Vasey;Y. Yang;O. Zahn;A. Zenteno
通讯作者：
F. W. High;B. Stalder;J. Song;P. Ade;K. Aird;S. Allam;R. Armstrong;W. Barkhouse;B. Benson;B. Benson;E. Bertin;Suman Bhattacharya;L. Bleem;M. Brodwin;E. Buckley-Geer;J. Carlstrom;P. Challis;C. Chang;T. Crawford;A. Crites;T. Haan;S. Desai;M. Dobbs;J. Dudley;R. Foley;E. George;M. Gladders;N. Halverson;M. Hamuy;S. Hansen;G. Holder;W. Holzapfel;J. Hrubeš;M. Joy;R. Keisler;Adrian T. Lee;Adrian T. Lee;E. Leitch;Huan Lin;Yen-Ting Lin;A. Loehr;M. Lueker;D. Marrone;J. McMahon;J. McMahon;J. Mehl;S. Meyer;J. J. Mohr-J.;T. Montroy;N. Morell;C. Ngeow;S. Padin;T. Plagge;T. Plagge;C. Pryke;C. Reichardt;A. Rest;J. Ruel;J. Ruhl;K. Schaffer;L. Shaw;L. Shaw;E. Shirokoff;R. C. Smith;H. Spieler;Z. Staniszewski;A. Stark;C. Stubbs;D. Tucker;K. Vanderlinde;J. Vieira;R. Williamson;W. M. Wood-Vasey;Y. Yang;O. Zahn;A. Zenteno
影响因子：
8.7
作者：
Komatsu, E.;Smith, K. M.;Wright, E. L.
通讯作者：
Wright, E. L.