Lensing-induced morphology changes in CMB temperature maps in modified gravity theories
Lensing-induced morphology changes in CMB temperature maps in modified gravity theories
复制标题
修正重力理论中透镜引起的 CMB 温度图形态变化
DOI：
10.1088/1475-7516/2016/04/056
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发表时间：
2016
影响因子：
6.4
通讯作者：
Munshi D
中科院分区：
文献类型：
--
作者：
Munshi D
宇宙微波背景(CMB)的透镜改变了温度涨落模式的形态，因此Minkowski泛函等拓扑描述符可以探测引起透镜的引力模型。我们展示了最近引入的2比2和3比1的Kurt谱(以及它们的关联函数)如何被用来探索修正的引力理论，例如f(R)引力理论和Quintessence模型。我们还研究了基于有效场论的模型，包括常量Ω模型和低能HořAVA理论。对于未来计划中的CMB偏振任务CORE+，估计用于检测透镜引起的形态变化的累积信噪比达到脚本O(103)。假设前景去除可能达到ℓmax=3000，我们证明了许多修正的引力理论可以被拒绝，具有很高的意义，使这项技术在能力上可与星系弱透镜或红移测量相媲美。这些拓扑估计器也有助于在四点函数或三谱的水平上区分透镜和其他散射次要因素。例如动力学的Sunyaev-Zel‘dovich(KSZ)效应，它与透镜一样，没有光谱失真。我们还讨论了未减去的点源带来的前景污染的复杂性。
Lensing of the Cosmic Microwave Background (CMB) changes the morphology of pattern of temperature fluctuations, so topological descriptors such as Minkowski Functionals can probe the gravity model responsible for the lensing. We show how the recently introduced two-to-two and three-to-one kurt-spectra (and their associated correlation functions), which depend on the power spectrum of the lensing potential, can be used to probe modified gravity theories such as f (R) theories of gravity and quintessence models. We also investigate models based on effective field theory, which include the constant-Ω model, and low-energy Hořava theories. Estimates of the cumulative signal-to-noise for detection of lensing-induced morphology changes, reaches Script O (10 3) for the future planned CMB polarization mission COrE+. Assuming foreground removal is possible to ℓ max= 3000, we show that many modified gravity theories can be rejected with a high level of significance, making this technique comparable in power to galaxy weak lensing or redshift surveys. These topological estimators are also useful in distinguishing lensing from other scattering secondaries at the level of the four-point function or trispectrum. Examples include the kinetic Sunyaev-Zel'dovich (kSZ) effect which shares, with lensing, a lack of spectral distortion. We also discuss the complication of foreground contamination from unsubtracted point sources.
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影响因子：
6.4
作者：
J. Errard;S. Feeney;H. Peiris;A. Jaffe
通讯作者：
J. Errard;S. Feeney;H. Peiris;A. Jaffe
CMB 的弱透镜效应：功率谱协方差
DOI：
--
发表时间：
2001
期刊：
影响因子：
--
作者：
A. Cooray
通讯作者：
A. Cooray
具有全辐射传递函数的原初非高斯 CMB 温度各向异性的角三谱
影响因子：
5
作者：
N. Kogo;E. Komatsu
通讯作者：
E. Komatsu
DOI：
10.1111/j.1365-2966.2008.12944.x
发表时间：
2008
影响因子：
4.8
作者：
Hikage C
通讯作者：
Hikage C
DOI：
10.1088/0004-637x/756/2/142
发表时间：
2012-02
期刊：
The Astrophysical Journal
影响因子：
--
作者：
A. V. Engelen;R. Keisler;O. Zahn;K. Aird;B. Benson;L. Bleem;J. Carlstrom;J. Carlstrom;C. Chang;C. Chang;Hsiao-mei Cho.;T. Crawford;A. Crites;T. Haan;M. Dobbs;J. Dudley;E. George;N. Halverson;G. Holder;W. Holzapfel;S. Hoover;Z. Hou;J. Hrubeš;M. Joy;L. Knox;Adrian T. Lee;Adrian T. Lee;E. Leitch;M. Lueker;D. Luong-Van;J. McMahon;J. Mehl;S. Meyer;M. Millea;J. Mohr;T. Montroy;T. Natoli;S. Padin;S. Padin;T. Plagge;C. Pryke;C. Reichardt;J. Ruhl;J. Sayre;K. Schaffer;K. Schaffer;L. Shaw;E. Shirokoff;H. Spieler;Z. Staniszewski;A. Stark;K. Story;K. Vanderlinde;J. Vieira;R. Williamson
通讯作者：
A. V. Engelen;R. Keisler;O. Zahn;K. Aird;B. Benson;L. Bleem;J. Carlstrom;J. Carlstrom;C. Chang;C. Chang;Hsiao-mei Cho.;T. Crawford;A. Crites;T. Haan;M. Dobbs;J. Dudley;E. George;N. Halverson;G. Holder;W. Holzapfel;S. Hoover;Z. Hou;J. Hrubeš;M. Joy;L. Knox;Adrian T. Lee;Adrian T. Lee;E. Leitch;M. Lueker;D. Luong-Van;J. McMahon;J. Mehl;S. Meyer;M. Millea;J. Mohr;T. Montroy;T. Natoli;S. Padin;S. Padin;T. Plagge;C. Pryke;C. Reichardt;J. Ruhl;J. Sayre;K. Schaffer;K. Schaffer;L. Shaw;E. Shirokoff;H. Spieler;Z. Staniszewski;A. Stark;K. Story;K. Vanderlinde;J. Vieira;R. Williamson