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相关论文: The Sunyaev-Zel'dovich angular power spectrum as a…

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We determine the angular power spectrum, C_l, of the Edinburgh/Durham Southern Galaxy Catalog (EDSGC) and use this statistic to constrain cosmological parameters. Our methods for determining C_l, and the parameters that affect it are based…

天体物理学 · 物理学 2009-10-31 Dragan Huterer , Lloyd Knox , Robert C. Nichol

We report the first detection of the Sunyaev-Zel'dovich increment on the cosmic microwave background (CMB) at submillimetre wavelengths in the direction of a cluster of galaxies.It was achieved towards the rich cluster Abell 2163, using the…

The thermal Sunyaev-Zel'dovich (tSZ) effect induces a Compton-$y$ distortion in cosmic microwave background (CMB) temperature maps that is sensitive to a line of sight integral of the ionized gas pressure. By correlating the positions of…

宇宙学与河外天体物理 · 物理学 2020-02-26 S. Pandey , E. J. Baxter , J. C. Hill

Non-targeted surveys for galaxy clusters using the Sunyaev-Zel'dovich effect (SZE) will yield valuable information on both cosmology and evolution of the intra-cluster medium (ICM). The redshift distribution of detected clusters will…

天体物理学 · 物理学 2009-10-31 Gilbert P. Holder , Joseph J. Mohr , John E. Carlstrom , August E. Evrard , Erik M. Leitch

The Sunyaev-Zeldovich (SZ) effect has proven to be an extremely powerful tool to study the physical and evolutionary properties of rich clusters of galaxies. Upcoming SZ experiments, with their much improved sensitivity and angular…

天体物理学 · 物理学 2009-11-10 G. De Zotti , C. Burigana , A. Cavaliere , L. Danese , G. L. Granato , A. Lapi , P. Platania , L. Silva

We examine the ability of the future Planck mission to provide a catalogue of galaxy clusters observed via their SZ distortion in the cosmic microwave background. For this purpose we produce full-sky SZ maps based on N-body simulations and…

天体物理学 · 物理学 2009-11-10 Joern Geisbuesch , Ruediger Kneissl , Michael Hobson

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…

The S-Z effect and Faraday rotation from halos are examined over a wide mass range, an including gas condensation and magnetic field evolution. Contributions to the CMB angular power spectrum are evaluated for galaxy clusters, galaxy groups…

天体物理学 · 物理学 2009-04-17 Hiroyuki Tashiro , Joseph Silk , Mathieu Langer , Naoshi Sugiyama

Imaging of the Sunyaev-Zel'dovich (SZ) effect in galaxy clusters combined with cluster plasma x-ray diagnostics can measure the cosmic distance scale to high redshift. Projecting the inverse-Compton scattering and x-ray emission along the…

天体物理学 · 物理学 2009-10-31 Martin E. Sulkanen

We analyze measurements of the thermal Sunyaev-Zeldovich (tSZ) effect arising in the circumgalactic medium (CGM) of $L^*$ galaxies, reported by Bregman et al. 2022 and Das et al. 2023. In our analysis we use the Faerman et al. 2017 and…

星系天体物理 · 物理学 2024-08-14 Yossi Oren , Amiel Sternberg , Christopher F. McKee , Yakov Faerman , Shy Genel

In this paper, we explain how moments of the thermal Sunyaev-Zel'dovich (tSZ) effect can constrain both cosmological parameters and the astrophysics of the intracluster medium (ICM). As the tSZ signal is strongly non-Gaussian, higher…

宇宙学与河外天体物理 · 物理学 2013-05-30 J. Colin Hill , Blake D. Sherwin

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…

宇宙学与河外天体物理 · 物理学 2018-01-01 Mathew Madhavacheril , Nicholas Battaglia , Hironao Miyatake

Recent measurements of the Sunyaev-Zel'dovich (SZ) angular power spectrum from the South Pole Telescope (SPT) and the Atacama Cosmology Telescope (ACT) demonstrate the importance of understanding baryon physics when using the SZ power…

宇宙学与河外天体物理 · 物理学 2015-05-20 M. Sun , N. Sehgal , G. M. Voit , M. Donahue , C. Jones , W. Forman , A. Vikhlinin , C. Sarazin

The Sunyaev-Zel'dovich effect (SZE) provides a unique way to map the large-scale structure of the universe as traced by massive clusters of galaxies. As a spectral distortion of the cosmic microwave background, the SZE is insensitive to the…

天体物理学 · 物理学 2011-05-05 John E. Carlstrom , Gilbert P. Holder , Erik D. Reese

We discuss non-Gaussian effects associated with the local large-scale structure contributions to the Cosmic Microwave Background (CMB) anisotropies through the thermal Sunyaev-Zel'dovich (SZ) effect. The non-Gaussianities associated with…

天体物理学 · 物理学 2009-11-06 Asantha Cooray

We present VSA observations (~34GHz) on scales ~20 arcmin towards a complete, X-ray-flux-limited sample of seven clusters at redshift z<0.1. Four have significant SZ detections in the presence of CMB primordial anisotropy. We use a bayesian…

We present high-resolution hydrodynamical simulations of the degree and direction of polarisation imprinted on the CMB by the Sunyaev-Zel'dovich effect in the the line of sight to massive galaxy clusters. We focus on two contributions which…

天体物理学 · 物理学 2009-11-10 G. Lavaux , J. M. Diego , H. Mathis , J. Silk

The normalisation of the matter power spectrum, sigma_8, is an essential ingredient to predict the phenomenology of the low redshift universe. It has been measured using several methods, such as X-ray cluster counts, weak lensing and the…

天体物理学 · 物理学 2008-11-26 A. Amara , A. Refregier

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…

天体物理学 · 物理学 2009-10-31 J. J. Mohr , J. E. Carlstrom , G. P. Holder , W. L. Holzapfel , M. K. Joy , E. M. Leitch , E. D. Reese