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We present detections of the Sunyaev-Zeldovich Effect (SZE) at 150GHz and 275GHz for the X-ray luminous z=0.299 cluster 1E0657-67. These observations were obtained as part of an X-ray, weak lensing, and SZE survey of nearby X-ray bright…

The Sunyaev-Zel'dovich (SZ) effect introduces a specific distortion of the blackbody spectrum of the cosmic microwave background (CMB) radiation when it scatters off hot gas in clusters of galaxies. The frequency dependence of the…

We have measured the Sunyaev Zel'dovich (SZ) effect for a sample of ten strong lensing selected galaxy clusters using the Sunyaev Zel'dovich Array (SZA). The SZA is sensitive to structures on spatial scales of a few arcminutes, while the…

Interferometric observations of the Sunyaev-Zel'dovich Effect (SZE) toward clusters of galaxies provide sensitive cosmological probes. We present results from 1 cm observations (at BIMA and OVRO) of a large, intermediate redshift cluster…

The Sunyaev-Zeldovich (SZ) effect is a window into the astrophysical processes of galaxy clusters, and relativistic corrections (the "rSZ") promise to provide a global census of the gas feedback within clusters. Upcoming wide-field…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-13 L. Kuhn , Z. Li , William R. Coulton

In this work we calculate the Sunyaev-Zel'dovich (SZ) effect due to the $e^+e^-$ from dark matter (DM) annihilation in galaxy clusters. Two candidates of DM particle, (1) the weakly-interacting massive particle (WIMP) and (2) the light dark…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-18 Qiang Yuan , Xiaojun Bi , Feng Huang , Xuelei Chen

Measurements of the Sunyaev-Zel'dovich (hereafter SZ) effect distortion of the cosmic microwave background provide us with an independent method to derive the gas temperature of galaxy clusters. In merging galaxy clusters the gas…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 D. A. Prokhorov , Y. Dubois , S. Nagataki

Upcoming millimeter experiments that probe the cosmic microwave background (CMB) will observe tens of thousands of galaxy clusters through the thermal Sunyaev-Zeldovich (tSZ) effect. tSZ selected clusters are powerful probes of cosmological…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-02 Dylan Cromer , Nicholas Battaglia , Mathew S. Madhavacheril

We present a catalog of 689 galaxy cluster candidates detected at significance $\xi>4$ via their thermal Sunyaev-Zel'dovich (SZ) effect signature in 95 and 150 GHz data from the 500-square-degree SPTpol survey. We use optical and infrared…

Cosmology and Nongalactic Astrophysics · Physics 2024-02-13 L. E. Bleem , M. Klein , T. M. C. Abbott , P. A. R. Ade , M. Aguena , O. Alves , A. J. Anderson , F. Andrade-Oliveira , B. Ansarinejad , M. Archipley , M. L. N. Ashby , J. E. Austermann , D. Bacon , J. A. Beall , A. N. Bender , B. A. Benson , F. Bianchini , S. Bocquet , D. Brooks , D. L. Burke , M. Calzadilla , J. E. Carlstrom , A. Carnero Rosell , J. Carretero , C. L. Chang , P. Chaubal , H. C. Chiang , T-L. Chou , R. Citron , C. Corbett Moran , M. Costanzi , T. M. Crawford , A. T. Crites , L. N. da Costa , T. de Haan , J. De Vicente , S. Desai , M. A. Dobbs , P. Doel , W. Everett , I. Ferrero , B. Flaugher , B. Floyd , D. Friedel , J. Frieman , J. Gallicchio , J. Garc'ia-Bellido , M. Gatti , E. M. George , G. Giannini , S. Grandis , D. Gruen , R. A. Gruendl , N. Gupta , G. Gutierrez , N. W. Halverson , S. R. Hinton , G. P. Holder , D. L. Hollowood , W. L. Holzapfel , K. Honscheid , J. D. Hrubes , N. Huang , J. Hubmayr , K. D. Irwin , J. Mena-Fernández , D. J. James , F. Kéruzoré , L. Knox , K. Kuehn , O. Lahav , A. T. Lee , S. Lee , D. Li , A. Lowitz , J. L. Marshal , M. McDonald , J. J. McMahon , F. Menanteau , S. S. Meyer , R. Miquel , J. J. Mohr , J. Montgomery , J. Myles , T. Natoli , J. P. Nibarger , G. I. Noble , V. Novosad , R. L. C. Ogando , S. Padin , S. Patil , M. E. S. Pereira , A. Pieres , A. A. Plazas Malag'on , C. Pryke , C. L. Reichardt , M. Rodr'iguez-Monroy , A. K. Romer , J. E. Ruhl , B. R. Saliwanchik , L. Salvati , E. Sanchez , A. Saro , K. K. Schaffer , T. Schrabback , I. Sevilla-Noarbe , C. Sievers , G. Smecher , M. Smith , T. Somboonpanyakul , B. Stalder , A. A. Stark , E. Suchyta , M. E. C. Swanson , G. Tarle , C. To , C. Tucker , T. Veach , J. D. Vieira , M. Vincenzi , G. Wang , J. Weller , N. Whitehorn , P. Wiseman , W. L. K. Wu , V. Yefremenko , J. A. Zebrowski , Y. Zhang

The South Pole Telescope (SPT) is conducting a Sunyaev-Zel'dovich (SZ) effect survey over large areas of the southern sky, searching for massive galaxy clusters to high redshift. In this preliminary study, we focus on a 40 square-degree…

The Sunyaev Zel'dovich effect (SZ effect) is a complete probe of ionized baryons, the majority of which are likely hiding in the intergalactic medium. We ran a $512^3$ $\Lambda$CDM simulation using a moving mesh hydro code to compute the…

Astrophysics · Physics 2009-11-07 Pengjie Zhang , Ue-Li Pen , Benjamin Wang

We review recent results of Sunyaev-Zel'dovich effect (SZE) observations toward galaxy clusters. Using cm-wave receivers mounted on the OVRO and BIMA mm-wave arrays we have obtained high signal to noise images of the effect for more than 20…

We examine the expected radio confusion on the thermal Sunyaev-Zel'dovich (SZ) effect of galaxy clusters at 28.5 GHz and 90 GHz based on the cluster radio luminosity function (CRLF) at 1.4 GHz. With the observationally determined spectral…

Astrophysics · Physics 2007-05-23 Huichun Lin , Tzihong Chiueh , Xiang-Ping Wu

We present follow-up observations of two galaxy clusters detected blindly via the Sunyaev-Zel'dovich (SZ) effect and released in the Planck Early Release Compact Source Catalogue. We use the Arcminute Microkelvin Imager, a dual-array 14-18…

We present the preparation for an observation of the Sunyaev-Zeldovich (SZ) effect with the 100m telescope in Effelsberg. We calculate the expected diminution of the cosmic microwave background radiation (CMB) at radio wavelength towards a…

Astrophysics · Physics 2007-05-23 Michael Thierbach , Reinhard Schlickeiser , Richard Wielebinski

We report on results of interferometric imaging of the Sunyaev-Zel'dovich Effect (SZE) with the OVRO and BIMA mm-arrays. Using low-noise cm-wave receivers on the arrays, we have obtained high quality images for 27 distant galaxy clusters.…

We perform a detailed study of the bispectrum of the Sunyaev-Zel'dovich effect. Using an analytical model for the pressure profiles of the intracluster medium, we demonstrate the SZ bispectrum to be a sensitive probe of the amplitude of the…

Cosmology and Nongalactic Astrophysics · Physics 2012-11-08 Suman Bhattacharya , Daisuke Nagai , Laurie Shaw , Tom Crawford , Gilbert P. Holder

In galaxy clusters the thermal Sunyaev-Zel'dovich (SZ) effect from the hot intracluster medium (ICM) provides a direct, self-contained measure of the pressure integrated over crossing lines of sight, that is intrinsically independent of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-23 A. Cavaliere , A. Lapi

The Sunyaev-Zel'dovich effect is a powerful tool for cosmology that can be used to measure the radial peculiar velocities of galaxy clusters, and thus to test, and constrain, theories of structure formation and evolution. This requires, in…

Astrophysics · Physics 2009-11-06 N. Aghanim , K. M. Górski , J. -L. Puget

We present a stacked lensing analysis of 96 galaxy clusters selected by the thermal Sunyaev-Zel'dovich (SZ) effect in maps of the cosmic microwave background (CMB). We select foreground galaxy clusters with a $5\sigma$-level SZ threshold in…