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Related papers: Sunyaev-Zeldovich effect in WMAP and its effect on…

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Comptonization of the cosmic microwave background (CMB) radiation by hot gas in clusters of galaxies - the Sunyaev-Zeldovich (S-Z) effect - is of great astrophysical and cosmological significance. In recent years observations of the effect…

Astrophysics · Physics 2007-05-23 Yoel Rephaeli

The thermal Sunyaev-Zel'dovich effect (tSZ) is a sensitive probe of cosmology, as it traces the abundance of galaxy clusters and groups in the late-time Universe. Upcoming cosmic microwave background experiments such as the Simons…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-24 Alina Sabyr , J. Colin Hill , Zoltan Haiman

(Abridged) The amplitude of the thermal Sunyaev Zel'dovich effect (tSZ) power spectrum is extremely sensitive to the abundance of galaxy clusters and therefore to fundamental cosmological parameters that control their growth, such as…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 Ian G. McCarthy , Amandine M. C. Le Brun , Joop Schaye , Gilbert P. Holder

The kinematic Sunyaev-Zel'dovich (kSZ) effect -- the Doppler boosting of cosmic microwave background (CMB) photons scattering off free electrons with non-zero line-of-sight velocity -- is an excellent probe of the distribution of baryons in…

Cosmology and Nongalactic Astrophysics · Physics 2021-08-25 Aleksandra Kusiak , Boris Bolliet , Simone Ferraro , J. Colin Hill , Alex Krolewski

We present the first detection of the cross-correlation angular power spectrum between the thermal Sunyaev-Zel'dovich (tSZ) effect and the X-ray emission over the full sky. The tSZ effect and X-rays are produced by the same hot gas within…

Cosmology and Nongalactic Astrophysics · Physics 2017-02-01 G. Hurier , M. Douspis , N. Aghanim , E. Pointecouteau , J. M. Diego , J. F. Macias-Perez

The problem of detecting Sunyaev-Zel'dovich (SZ) clusters in multifrequency CMB observations is investigated using a number of filtering techniques. A multifilter approach is introduced, which optimizes the detection of SZ clusters on…

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…

Astrophysics · Physics 2009-11-07 Gilbert P. Holder

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…

Astrophysics · Physics 2008-11-26 Niayesh Afshordi , Yen-Ting Lin , Daisuke Nagai , Alastair J. R. Sanderson

We consider the role of the galactic kinetic Sunyaev Zeldovich (SZ) effect as a CMB foreground. While the galactic thermal Sunyaev Zeldovich effect has previously been studied and discarded as a potential CMB foreground, we find that the…

Astrophysics · Physics 2009-11-13 A. Waelkens , M. Maturi , T. Ensslin

We present a forecast of the pairwise kinematic Sunyaev-Zel'dovich (kSZ) measurement that will be achievable with the future CMB-S4 experiment. CMB-S4 is the next stage for ground-based cosmic microwave background experiments, with a…

Cosmology and Nongalactic Astrophysics · Physics 2024-09-30 E. Schiappucci , S. Raghunathan , C. To , F. Bianchini , C. L. Reichardt , N. Battaglia , B. Hadzhiyska , S. Kim , J. B. Melin , C. Sifón , E. M. Vavagiakis

We present constraints on cosmological parameters based on a sample of Sunyaev-Zel'dovich-selected galaxy clusters detected in a millimeter-wave survey by the Atacama Cosmology Telescope. The cluster sample used in this analysis consists of…

Upcoming observatories will be able to detect the kinetic Sunyaev-Zel'dovitch (kSZ) effect with unprecendented signal-to-noise, and cross-correlations with foreground signals such as galaxy counts are a promising way to extract additional…

Astrophysics · Physics 2007-05-23 Simon DeDeo , David N. Spergel , Hy Trac

We show how future measurements of the SZ effect (SZE) can be used to constrain the cosmological parameters. We combine the SZ information expected from the Planck full-sky survey, N(S), where no redshift information is included, with the…

Astrophysics · Physics 2009-11-06 J. M. Diego , E. Martinez-Gonzalez , J. L. Sanz , N. Benitez , J. Silk

We report the final results of our study of the cosmic microwave background (CMB) with the BIMA array. Over 1000 hours of observation were dedicated to this project exploring CMB anisotropy on scales between 1' and 2' in eighteen 6.6' FWHM…

Astrophysics · Physics 2008-11-26 K. S. Dawson , W. L. Holzapfel , J. E. Carlstrom , M. Joy , S. J. LaRoque

We derive cosmological parameters from the CBI measurements of the Cosmic Microwave Background (CMB) angular power spectrum. Our results provide an independent confirmation of the standard $\Omega_{\rm tot}=1$ $\Lambda$CDM model within the…

The WMAP Q, V, and W band radial profiles of temperature deviation of the cosmic microwave background (CMB) were constructed for a sample of 31 randomly selected nearby clusters of galaxies in directions of Galactic latitude $|b| >$ 30$^o$.…

Astrophysics · Physics 2008-11-26 Richard Lieu , Jonathan P. D. Mittaz , Shuang-Nan Zhang

We devise a Monte-Carlo based, optimized filter match method to extract the thermal Sunyaev-Zel'dovich (SZ) signature of a catalog of 116 low-redshift X-ray clusters from the first year data release of the Wilkinson Microwave Anisotropy…

Astrophysics · Physics 2009-08-29 Niayesh Afshordi , Yen-Ting Lin , Alastair J. R. Sanderson

A new generation of instruments will reveal the microwave sky at high resolution. We focus on one of these, the Atacama Cosmology Telescope, which probes scales 1000<l<10000, where both primary and secondary anisotropies are important.…

Astrophysics · Physics 2009-11-10 Kevin M. Huffenberger , Uros Seljak

The recent release of {\it Planck} data gives access to a full sky coverage of the thermal Sunyaev-Zel'dovich (tSZ) effect and of the cosmic microwave background (CMB) lensing potential ($\phi$). The cross-correlation of these two probes of…

Cosmology and Nongalactic Astrophysics · Physics 2017-02-01 G. Hurier

The angular power spectrum of the SZ effect, C_l, is a powerful probe of cosmology. It is easier to detect than individual clusters in the field, is insensitive to observational selection effects and does not require a calibration between…

Astrophysics · Physics 2009-11-07 Eiichiro Komatsu , Uros Seljak