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相关论文: Statistical Imprints of SZ Effects in the Cosmic M…

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The Sunyaev-Zel'dovich (SZ) effect from clusters of galaxies should yield a significant signal in cosmic microwave background(CMB) experiments at small angular scales ($\ell \ga 1000$). Experiments with sufficient frequency coverage should…

天体物理学 · 物理学 2007-05-23 Gilbert P. Holder , John E. Carlstrom

We discuss non-Gaussian effects associated with the local large-scale structure contributions to the Cosmic Microwave Background (CMB) anisotropies through the thermal Sunyaev-Zel'dovich (SZ) effect. The non-Gaussianities associated with…

天体物理学 · 物理学 2009-11-06 Asantha Cooray

We apply statistical tests, based on the study of thecoefficients in a wavelet decomposition, to a cosmological signal: the Cosmic Microwave Background (CMB) anisotropies. The latter represent the superposition of primary anisotropy…

天体物理学 · 物理学 2007-05-23 N. Aghanim , O. Forni

Measurements of the Cosmic Microwave Background (CMB) temperature anisotropies on large angular scales have uncovered a number of anomalous features of marginal statistical significance, such as a hemispherical power asymmetry, lack of…

宇宙学与河外天体物理 · 物理学 2020-07-01 Juan I. Cayuso , Matthew C. Johnson

The Sunyaev-Zel'dovich (SZ) effect has long been identified as one of the most important secondary effects of the Cosmic Microwave Background (CMB). On the one hand, it is a potentially very powerful cosmological probe providing us with…

宇宙学与河外天体物理 · 物理学 2015-05-13 N. Taburet , M. Douspis , N. Aghanim

Using large numbers of simulations of the microwave sky, incorporating the Cosmic Microwave Background (CMB) and the Sunyaev-Zel'dovich (SZ) effect due to clusters, we investigate the statistics of the power spectrum at microwave…

宇宙学与河外天体物理 · 物理学 2010-11-02 Michael W. Peel , Richard A. Battye , Scott T. Kay

We predict the level of small-scale anisotropy in the cosmic microwave background (CMB) due to the Sunyaev--Zel'dovich (SZ) effect for the ensemble of cosmological models that are consistent with current measurements of large-scale CMB…

天体物理学 · 物理学 2009-11-07 Gilbert P. Holder

Extensive recent work on the Sunyaev-Zeldovich (S-Z) effect reflects major progress in observational capabilities of interferometric arrays, the improved quality of multi-frequency measurements with upcoming ground-based and stratospheric…

天体物理学 · 物理学 2007-05-23 Yoel Rephaeli

We consider the effect of the cosmic microwave background (CMB) frequency spectral distortions arising due to the Compton scattering of the anisotropic radiation on Sunyaev-Zel'dovich (SZ) clusters. We derive the correction to the thermal…

宇宙学与河外天体物理 · 物理学 2019-02-22 I. G. Edigaryev , D. I. Novikov , S. V. Pilipenko

We discuss the nature of the possible high-l excess in the Cosmic Microwave Background (CMB) anisotropy power spectrum observed by the Cosmic Background Imager (CBI). We probe the angular structure of the excess in the CBI deep fields and…

(Abridged) The hot gas in the IGM produces anisotropies in the Cosmic Microwave Background (CMB) through the thermal Sunyaev-Zel'dovich (SZ) effect. The SZ effect is a powerful probe of large-scale structure in the universe and must be…

天体物理学 · 物理学 2009-12-30 A. Refregier , E. Komatsu , D. N. Spergel , U. -L. Pen

The Sunyaev-Zel'dovich (SZ) effect is a direct probe of thermal energy content of the Universe, induced in the cosmic microwave background (CMB) sky through scattering of CMB photons off hot electrons in the intracluster medium (ICM). We…

天体物理学 · 物理学 2008-11-26 Niayesh Afshordi , Yen-Ting Lin , Daisuke Nagai , Alastair J. R. Sanderson

The Sunyaev-Zel'dovich (SZ) effect has a distinct spectral signature that allows its separation from fluctuations in the cosmic microwave background (CMB) and foregrounds. Using CMB anisotropies measured in Wilkinson Microwave Anisotropy…

宇宙学与河外天体物理 · 物理学 2011-07-19 Shahab Joudaki , Joseph Smidt , Alexandre Amblard , Asantha Cooray

Study of the primary anisotropies of the Cosmic Microwave Background (CMB) can be used to determine the cosmological parameters to a very high precision. The power spectrum of the secondary CMB anisotropies due to the thermal…

天体物理学 · 物理学 2016-08-30 Subhabrata Majumdar

Since its original formulation the Sunyaev-Zeldovich (SZ) effect has been recognized as a ``powerful laboratory'' for our comprehension of physical processes in cosmic structures and to derive crucial information on some general properties…

天体物理学 · 物理学 2009-06-23 Carlo Burigana

The Sunyaev-Zel'dovich (SZ) effect is the inverse Compton-scattering of cosmic microwave background (CMB) photons by hot electrons in the intervening gas throughout the universe. The effect has a distinct spectral signature that allows its…

In this paper, I investigate a local effect of polarization of the Cosmic Microwave Background (CMB) in clusters of galaxies, due to the Thomson scattering of the anisotropic radiation. A local anisotropy of the CMB is produced by some…

天体物理学 · 物理学 2009-10-30 Marina Gibilisco

We report cosmic microwave background (CMB) power spectrum measurements from the first 100 sq. deg. field observed by the South Pole Telescope (SPT) at 150 and 220 GHz. On angular scales where the primary CMB anisotropy is dominant, ell ~<…

We present the observed relation between the cosmic microwave background (CMB) temperature decrement due to the Sunyaev-Zeldovich (SZ) effect and the X-ray luminosity of galaxy clusters. We discuss this relation in terms of the cluster…

天体物理学 · 物理学 2009-10-31 Asantha R. Cooray

In order to assess the potential of future microwave anisotropy space experiments for detecting clusters by their Sunyaev-Zeldovich (SZ) thermal effect, we have simulated maps of the large scale distribution of their Compton parameter $y$…

天体物理学 · 物理学 2007-05-23 N. Aghanim , A. De Luca , F. R. Bouchet , G. Gispert , J. L. Puget
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