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Related papers: The Sunyaev-Zel'dovich effect revisited

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We extend the recent boost operator formalism for relativistic Compton scattering calculations to also account for polarization. This allows us to provide general, exact expressions for the polarized Sunyaev-Zeldovich (SZ) effect sourced…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-17 Erik Rosenberg , Jens Chluba

In this Letter we explore the effects of the scattering of photons incident on a dark matter halo through their interaction with either electrons or photons produced by dark matter annihilation. Particularly, we examine the effects of this…

Cosmology and Nongalactic Astrophysics · Physics 2019-02-13 Geoff Beck , Sergio Colafrancesco

The Sunyaev-Zel'dovich effect (SZE) provides a powerful tool for cosmological studies. Through recent advances in instrumentation and observational techniques it is now possible to obtain high quality measurements of the effect toward…

Astrophysics · Physics 2007-05-23 J. E. Carlstrom , M. Joy , L. Grego , G. Holder , W. L. Holzapfel , S. LaRoque , J. J. Mohr , E. D. Reese

We present the analytical formulas, derived based on the halo model, to compute the cross-correlation between the thermal Sunyaev-Zel'dovich (SZ) effect and the distribution of galaxy clusters. By binning the clusters according to their…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-30 Wenjuan Fang , Kenji Kadota , Masahiro Takada

We present theoretical modelling of the electron distribution produced by annihilating neutralino dark matter in dwarf spheroidal galaxies (dSphs). In particular, we follow up the idea of Colafrancesco (2004) and find that such electrons…

Astrophysics · Physics 2009-11-11 Thomas L. Culverhouse , N. Wyn Evans , S. Colafrancesco

Compton scattering of the cosmic microwave background radiation by electrons in the hot gas in clusters of galaxies - the Sunyaev-Zeldovich effect - has long been recognized as a uniquely important feature, rich in cosmological and…

This paper shows that the accepted expressions for the second order corrections in the parameter $z$ to the thermal Sunyaev-Zel'dovich effect can be accurately reproduced by a simple convolution integral approach. This representation allows…

Astrophysics · Physics 2016-08-30 A. Sandoval-Villalbazo , L. S. Garcia-Colin

We address the question of whether the angular power spectrum of the thermal Sunyaev-Zel'dovich (SZ) sky is further distorted by weak gravitational lensing of foreground large-scale structures. Using an analytic approach to both gaseous and…

Astrophysics · Physics 2009-11-10 Xiang-Ping Wu

Observations from the first flight of the Medium Scale Anisotropy Measurement (MSAM1-92) are analyzed to search for the Sunyaev-Zel'dovich (SZ) effect towards the Coma cluster. This balloon-borne instrument uses a $28\arcmin$ FWHM beam and…

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…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 N. Taburet , M. Douspis , N. Aghanim

The thermal Sunyaev-Zel'dovich (tSZ) effect is a spectral distortion of the cosmic microwave background (CMB) resulting from inverse Compton scattering of CMB photons with electrons in the medium of galaxy clusters. The spectrum of the tSZ…

Cosmology and Nongalactic Astrophysics · Physics 2023-05-18 David Zegeye , Thomas Crawford , Wayne Hu

The Sunyaev-Zel'dovich effect provides a useful probe of cosmology and structure formation in the Universe. Recent years have seen rapid progress in both quality and quantity of its measurements. In this review, we overview cosmological and…

Cosmology and Nongalactic Astrophysics · Physics 2014-07-02 Tetsu Kitayama

We report measurements of the Sunyaev-Zel'dovich (SZ) effect in three high-redshift (0.89 < z < 1.03), X-ray selected galaxy clusters. The observations were obtained at 30 GHz during the commissioning period of a new, eight-element…

An observing campaign was devoted to the search for the Sunyaev-Zeldovich (S-Z) effect towards X-ray ROSAT Clusters in the millimetric spectral domain. A double channel (1.2 and 2 {\it mm}) photometer was installed at the focus of the 15m…

The Planck collaboration has extensively used the six Planck HFI frequency maps to detect the Sunyaev-Zel'dovich (SZ) effect with dedicated methods, e.g., by applying (i) component separation to construct a full sky map of the y parameter…

Cosmology and Nongalactic Astrophysics · Physics 2020-02-12 Victor Bonjean

The Sunyaev-Zel'dovich (SZ) effect of a cluster of galaxies is usually measured after background radio sources are removed from the cluster field. Gravitational lensing by the cluster potential leads to a systematic deficit in the residual…

Astrophysics · Physics 2009-10-28 Abraham Loeb , Alexandre Refregier

The hot gas embedded in the large-scale structures in the Universe produces secondary fluctuations in the Cosmic Microwave Background (CMB). Because it is proportional to the gas pressure integrated along the line of sight, this effect, the…

Astrophysics · Physics 2013-05-29 Alexandre Refregier , Romain Teyssier

I discuss galaxy cluster surveys based on the Sunyaev--Zel'dovich effect and their relevance for cosmological studies. The unique aspects of cluster selection by this method are emphasized and certain issues of surveying are addressed.…

Astrophysics · Physics 2007-05-23 J. G. Bartlett

The hot gas in clusters of galaxies emits thermal bremsstrahlung emission that can be probed directly through measurements in the X-ray band with satellites like ROSAT and ASCA. Another probe of this gas comes from its effect on the cosmic…

Astrophysics · Physics 2007-05-23 John P. Hughes

Populations of relativistic electrons in clusters of galaxies should imprint a characteristic spectral distortion signature on the Cosmic Microwave Background photons - the relativistic Sunyaev-Zeldovich (SZ) effect. We investigate how…

Astrophysics · Physics 2007-05-23 Torsten A. Ensslin , Steen H. Hansen