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Amongst standard model parameters that are constrained by cosmic microwave background (CMB) observations, the optical depth $\tau$ stands out as a nuisance parameter. While $\tau$ provides some crude limits on reionization, it also degrades…

Cosmology and Nongalactic Astrophysics · Physics 2016-02-23 Adrian Liu , Jonathan R. Pritchard , Rupert Allison , Aaron R. Parsons , Uroš Seljak , Blake D. Sherwin

The thermal Sunyaev-Zel'dovich (tSZ) and the kinematic Sunyaev-Zel'dovich (kSZ) effects trace the distribution of electron pressure and momentum in the hot Universe. These observables depend on rich multi-scale physics, thus, simulated maps…

Cosmology and Nongalactic Astrophysics · Physics 2020-10-28 Leander Thiele , Francisco Villaescusa-Navarro , David N. Spergel , Dylan Nelson , Annalisa Pillepich

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…

[ABRIDGED] Inhomogeneous reionization acts as a source of arcminute-scale anisotropies in the cosmic microwave background (CMB), the most important of which is the kinetic Sunyaev-Zel'dovich (kSZ) effect. Observational efforts with the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Andrei Mesinger , Matthew McQuinn , David Spergel

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…

Astrophysics · Physics 2009-06-23 Carlo Burigana

We report the first robust evidence for the rotational kinematic Sunyaev-Zel'dovich (rkSZ) effect, produced by the Thomson scattering of cosmic microwave background (CMB) photons off rotating intracluster gas. By combining CMB intensity and…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-12 Samuel Goldstein , J. Colin Hill

The complex processes of baryonic feedback associated with galaxy evolution are still poorly understood, and their impact on the clustering of matter on small scales remains difficult to quantify. While many fitting functions and emulators…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-26 Alex Laguë , Mathew S. Madhavacheril , Josh Borrow , Kendrick M. Smith , Xinyi Chen , Matthieu Schaller , Joop Schaye

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…

Astrophysics · Physics 2007-05-23 Gilbert P. Holder , John E. Carlstrom

We study constraints on allowed reionization histories by comparing predictions of a physical semi-numerical model with secondary temperature and polarization anisotropies of the cosmic microwave background (CMB). Our model has four free…

Cosmology and Nongalactic Astrophysics · Physics 2020-12-02 Tirthankar Roy Choudhury , Suvodip Mukherjee , Sourabh Paul

We report results from an analysis aimed at detecting the trispectrum of the kinematic Sunyaev-Zel{'}dovich (kSZ) effect by combining data from the South Pole Telescope (SPT) and {\it Herschel}-SPIRE experiments over a 100 ${\rm deg}^{2}$…

Cosmology and Nongalactic Astrophysics · Physics 2025-01-03 S. Raghunathan , P. A. R. Ade , A. J. Anderson , B. Ansarinejad , M. Archipley , J. E. Austermann , L. Balkenhol , J. A. Beall , K. Benabed , A. N. Bender , B. A. Benson , F. Bianchini , L. E. Bleem , J. Bock , F. R. Bouchet , L. Bryant , E. Camphuis , J. E. Carlstrom , T. W. Cecil , C. L. Chang , P. Chaubal , H. C. Chiang , P. M. Chichura , T. -L. Chou , R. Citron , A. Coerver , T. M. Crawford , A. T. Crites , A. Cukierman , C. Daley , K. R. Dibert , M. A. Dobbs , A. Doussot , D. Dutcher , W. Everett , C. Feng , K. R. Ferguson , K. Fichman , A. Foster , S. Galli , J. Gallicchio , A. E. Gambrel , R. W. Gardner , F. Ge , E. M. George , N. Goeckner-Wald , R. Gualtieri , F. Guidi , S. Guns , N. Gupta , T. de Haan , N. W. Halverson , E. Hivon , G. P. Holder , W. L. Holzapfel , J. C. Hood , J. D. Hrubes , A. Hryciuk , N. Huang , J. Hubmayr , K. D. Irwin , F. Kéruzoré , A. R. Khalife , L. Knox , M. Korman , K. Kornoelje , C. -L. Kuo , A. T. Lee , K. Levy , D. Li , A. E. Lowitz , C. Lu , A. Maniyar , E. S. Martsen , J. J. McMahon , F. Menanteau , M. Millea , J. Montgomery , C. Corbett Moran , Y. Nakato , T. Natoli , J. P. Nibarger , G. I. Noble , V. Novosad , Y. Omori , S. Padin , Z. Pan , P. Paschos , S. Patil , K. A. Phadke , K. Prabhu , C. Pryke , W. Quan , M. Rahimi , A. Rahlin , C. L. Reichardt , M. Rouble , J. E. Ruhl , B. R. Saliwanchik , K. K. Schaffer , E. Schiappucci , C. Sievers , G. Smecher , J. A. Sobrin , A. A. Stark , J. Stephen , A. Suzuki , C. Tandoi , K. L. Thompson , B. Thorne , C. Trendafilova , C. Tucker , C. Umilta , T. Veach , J. D. Vieira , M. P. Viero , Y. Wan , G. Wang , N. Whitehorn , W. L. K. Wu , V. Yefremenko , M. R. Young , J. A. Zebrowski , M. Zemcov

Recently, it was pointed out that invoking a large value of the CMB optical depth, $\tau_{\rm CMB} = 0.09$, could help resolve tensions between DESI DR2 BAO data and the CMB. This is larger than the value of $\tau_{\rm CMB} = 0.058$…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-23 Christopher Cain , Alexander Van Engelen , Kevin S. Croker , Darby Kramer , Anson D'Aloisio , Garett Lopez

During the epoch of reionization, local variations in the ionized fraction (patchiness) imprint arcminute-scale temperature anisotropies in the CMB through the kinetic Sunyaev-Zel'dovich (kSZ) effect. We employ an improved version of an…

The optical depth $\tau$ is the least well determined parameter in the standard model of cosmology, and one whose precise value is important for both understanding reionization and for inferring fundamental physics from cosmological…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-05 Noah Sailer , Shi-Fan Chen , Martin White

The detection and characterization of primordial gravitational waves through their impact on the polarization anisotropies of the cosmic microwave background (CMB) is a primary science goal of current and future observations of the CMB. An…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-30 Anne-Sylvie Deutsch , Emanuela Dimastrogiovanni , Matteo Fasiello , Matthew C. Johnson , Moritz Münchmeyer

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 huge worldwide investment in CMB experiments should make the Sunyaev-Zeldovich (SZ) effect a key probe of the cosmic web in the near future. For the promise to be realized, substantial development of simulation and analysis tools to…

Astrophysics · Physics 2007-05-23 J. Richard Bond , Marcelo I. Ruetalo , James W. Wadsley , Michael D. Gladders

We calculate the constraints on dark energy and cosmic modifications to gravity achievable with upcoming cosmic microwave background (CMB) surveys sensitive to the Sunyaev-Zeldovich (SZ) effects. The analysis focuses on using the mean…

Cosmology and Nongalactic Astrophysics · Physics 2015-08-06 Eva-Maria Mueller , Francesco de Bernardis , Rachel Bean , Michael Niemack

General relativity predicts that the rotational momentum flux of matter twists the spacetime via a vector gravitomagnetic (frame-dragging) field, which remains undetected in cosmology. This vector field induces an additional gravitational…

Cosmology and Nongalactic Astrophysics · Physics 2022-01-26 Cristian Barrera-Hinojosa , Baojiu Li , Yan-Chuan Cai