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Related papers: Interpreting Sunyaev-Zel'dovich observations with …

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X-ray and microwave cluster scaling relations are immensely valuable for cosmological analysis. However, their power is limited by astrophysical systematics that bias mass estimates and introduce additional scatter. Turbulence injected into…

Cosmology and Nongalactic Astrophysics · Physics 2020-07-02 Sheridan B. Green , Han Aung , Daisuke Nagai , Frank C. van den Bosch

Sunyaev-Zel'dovich (SZ) cluster surveys are considered among the most promising methods for probing dark energy up to large redshifts. However, their premise is hinged upon an accurate mass-observable relationship, which could be affected…

Astrophysics · Physics 2009-08-29 Niayesh Afshordi

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 Sunyaev-Zeldovich (SZ) effect is a promising tool to study physical properties of the hot X-ray emitting intracluster medium (ICM) in galaxy clusters. To date, most SZ observations have been interpreted in combination with X-ray…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Andrea Morandi , Daisuke Nagai , Wei Cui

We investigate empirical scaling relations between the thermal Sunyaev-Zeldovich effect (SZE) and cluster mass in simulated clusters of galaxies. The simulated clusters have been compiled from four different samples that differ only in…

Astrophysics · Physics 2009-11-10 Patrick M. Motl , Eric J. Hallman , Jack O. Burns , Michael L. Norman

We have imaged the Sunyaev-Zel'dovich (SZ) effect signals at 140 and 270 GHz towards ten galaxy clusters with Bolocam and AzTEC/ASTE. We also used Planck data to constrain the signal at large angular scales, Herschel-SPIRE images to…

Conventionally, in galaxy surveys, cosmological constraints on the growth and expansion history of the universe have been obtained from the measurements of redshift-space distortions and baryon acoustic oscillations embedded in the…

Cosmology and Nongalactic Astrophysics · Physics 2022-08-16 Teppei Okumura , Atsushi Taruya

We present scaling relations between the integrated Sunyaev-Zel'dovich Effect (SZE) signal, $Y_{\rm SZ}$, its X-ray analogue, $Y_{\rm X}\equiv M_{\rm gas}T_{\rm X}$, and total mass, $M_{\rm tot}$, for the 45 galaxy clusters in the Bolocam…

We use high-resolution hydrodynamical simulations of large-scale structure formation to study the imprints of the local superclusters onto the full-sky Sunyaev-Zel'dovich (SZ) signals. Following (Mathis et al. 2002), the initial conditions…

Astrophysics · Physics 2009-11-11 K. Dolag , F. K. Hansen , M. Roncarelli , L. Moscardini

The joint likelihood of observable cluster signals reflects the astrophysical evolution of the coupled baryonic and dark matter components in massive halos, and its knowledge will enhance cosmological parameter constraints in the coming era…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 R. Stanek , E. Rasia , A. E. Evrard , F. Pearce , L. Gazzola

We present an improved method for predicting the Sunyaev-Zeldovich (SZ) effect in galaxy clusters from spatially-resolved, spectroscopic X-ray data. Using the deprojected electron density and temperature profiles measured within a fraction…

Astrophysics · Physics 2009-09-17 R. W. Schmidt , S. W. Allen , A. C. Fabian

Future high-resolution measurements of the cosmic microwave background (CMB) will produce catalogs of tens of thousands of galaxy clusters through the thermal Sunyaev-Zel'dovich (tSZ) effect. We forecast how well different configurations of…

Cosmology and Nongalactic Astrophysics · Physics 2018-01-01 Mathew Madhavacheril , Nicholas Battaglia , Hironao Miyatake

We build a simple, {\it top-down} model for the gas density and temperature profiles for galaxy clusters. The gas is assumed to be in hydrostatic equilibrium along with a component of non-thermal pressure taken from simulations and the gas…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Anya Chaudhuri , Subhabrata Majumdar

(Abridged) The precision modeling of the thermal Sunyaev Zeldovich (SZ) effect and future high accuracy measurements will provide a powerful way to constrain the thermal history of the universe. In this paper, we combine high resolution…

Astrophysics · Physics 2009-11-10 Pengjie Zhang , Ue-Li Pen , Hy Trac

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

Upcoming measurements of the kinetic Sunyaev-Zel'dovich (kSZ) effect, which results from Cosmic Microwave Background (CMB) photons scattering off moving electrons, offer a powerful probe of the Epoch of Reionization (EoR). The kSZ signal…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-24 Farshid Farhadi Khouzani , Abinash Kumar Shaw , Paul La Plante , Bryar Mustafa Shareef , Laxmi Gewali

Hydrodynamical simulations are used in combination with the Press-Schechter expression to simulate Sunyaev-Zel'dovich (SZ) galaxy cluster sky maps. These are used to gauge the ability of future SZ observations to provide information about…

Astrophysics · Physics 2007-05-23 Ruediger Kneissl
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