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Related papers: Lensing Sunyaev-Zel'dovich Clusters

200 papers

We discuss a new method of finding the cluster temperatures which is independent of distance and therefore very useful for distant clusters. The hot gas of electrons in clusters of galaxies scatters and distorts the cosmic microwave…

Astrophysics · Physics 2009-11-07 Steen H. Hansen , Sergio Pastor , Dmitry V. Semikoz

Thermal Sunyaev-Zeldovich (tSZ) power spectrum is a powerful probe of the present-day amplitude of matter density fluctuations, and has been measured up to $\ell\approx 10^3$ from the {\it Planck} data. The largest systematic uncertainty in…

Cosmology and Nongalactic Astrophysics · Physics 2020-02-14 Ryu Makiya , Chiaki Hikage , Eiichiro Komatsu

The advent of high-resolution imaging of galaxy clusters using the Sunyaev-Zel'dovich Effect (SZE) provides a unique probe of the astrophysics of the intracluster medium (ICM) out to high redshifts. To investigate the effects of cluster…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 John J. Ruan , Thomas R. Quinn , Arif Babul

We report the direct detection of the kinetic Sunyaev-Zel'dovich (kSZ) effect in galaxy clusters with a 3.5 sigma significance level. The measurement was performed by stacking the Planck map at 217 GHz at the positions of galaxy clusters…

Cosmology and Nongalactic Astrophysics · Physics 2021-01-26 Hideki Tanimura , Saleem Zaroubi , Nabila Aghanim

The main statistical properties of the Sunyaev-Zeldovich (S-Z) effect - the power spectrum, cluster number counts, and angular correlation function - are calculated and compared within the framework of two density fields which differ in…

Astrophysics · Physics 2009-11-11 S. Sadeh , Y. Rephaeli , J. Silk

Galaxy cluster abundance measurements are a valuable tool for constraining cosmological parameters like the mass density ($\Omega_m$) and density fluctuation amplitude ($\sigma_8$). Wide area surveys detect clusters based on observables,…

Foreseeing the era of high spatial resolution measurements of the Sunyaev-Zel'dovich effect (SZE) in clusters of galaxies, we present a prototype analysis of this sort combined with Chandra X-ray data. It is applied specifically to RX…

Astrophysics · Physics 2015-06-24 T. Kitayama , E. Komatsu , N. Ota , T. Kuwabara , Y. Suto , K. Yoshikawa , M. Hattori , H. Matsuo

The $Planck$ satellite has recently completed an all-sky galaxy cluster survey exploiting the thermal Sunyaev-Zel'dovich (SZ) effect to locate some of the most massive systems observable. With a median redshift of $\left<z\right>=0.22$, the…

Cosmology and Nongalactic Astrophysics · Physics 2015-08-06 T. Mroczkowski , A. Kovács , E. Bulbul , J. Staguhn , D. J. Benford , T. E. Clarke , R. J. van Weeren , H. T. Intema , S. Randall

We introduce a new statistic to measure more accurately the cosmic sound speed of clusters of galaxies at different redshifts. This statistic is evaluated by cross-correlating cosmic microwave background (CMB) fluctuations caused by the…

Astrophysics · Physics 2009-11-10 F. Atrio--Barandela , A. Kashlinsky , J. P. Mücket

We present a catalog of 224 galaxy cluster candidates, selected through their Sunyaev-Zel'dovich (SZ) effect signature in the first 720 deg2 of the South Pole Telescope (SPT) survey. This area was mapped with the SPT in the 2008 and 2009…

We analysed the 3D clustering of the Planck sample of Sunyaev-Zeldovich (SZ) selected galaxy clusters, focusing on the redshift-space two-point correlation function (2PCF). We compared our measurements to theoretical predictions of the…

Cosmology and Nongalactic Astrophysics · Physics 2023-06-07 G. F. Lesci , A. Veropalumbo , M. Sereno , F. Marulli , L. Moscardini , C. Giocoli

In recent years, significant progress has been made in building new galaxy clusters samples, at low and high redshifts, from wide-area surveys, particularly exploiting the Sunyaev--Zel'dovich (SZ) effect. A large effort is underway to…

We estimate total mass ($M_{500}$), intracluster medium (ICM) mass ($M_{\mathrm{ICM}}$) and stellar mass ($M_{\star}$) in a Sunyaev-Zel'dovich effect (SZE) selected sample of 91 galaxy clusters with masses…

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

Since galaxy clusters sit at the high-end of the mass function, the number of galaxy clusters both massive and concentrated enough to yield particularly large Einstein radii poses useful constraints on cosmological and structure formation…

Cosmology and Nongalactic Astrophysics · Physics 2017-05-04 Adi Zitrin , Stella Seitz , Anna Monna , Anton Koekemoer , Mario Nonino , Daniel Gruen , Italo Balestra , Marisa Girardi , Johannes Koppenhoefer , Amata Mercurio

The Sunyaev-Zeldovich (SZ) effect is a promising tool for detecting the presence of hot gas out to the galaxy cluster peripheries. We developed a spectral imaging algorithm dedicated to the SZ observations of nearby galaxy clusters with…

Cosmology and Nongalactic Astrophysics · Physics 2016-01-26 H. Bourdin , P. Mazzotta , E. Rasia

Recent first detections of the cross-correlation of the thermal Sunyaev-Zel'dovich (tSZ) signal in Planck cosmic microwave background (CMB) temperature maps with gravitational lensing maps inferred from the Planck CMB data and the CFHTLenS…

Cosmology and Nongalactic Astrophysics · Physics 2015-10-28 N. Battaglia , J. C. Hill , N. Murray

The Sunyaev-Zel'dovich effect causes a change in the apparent brightness of the Cosmic Microwave Background Radiation towards a cluster of galaxies or any other reservoir of hot plasma. Measurements of the effect provide distinctly…

Astrophysics · Physics 2008-11-26 M. Birkinshaw