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This is the fourth of a series of papers on low X-ray luminosity galaxy clusters. The sample comprises 45 galaxy clusters with X-ray luminosities fainter than 0.7 10$^{44}$ erg s$^{-1}$ at redshifts lower than 0.2 in the regions of the…

Astrophysics of Galaxies · Physics 2019-05-17 A. L. O'Mill , M. V. Alonso , C. Valotto , J. L. Nilo Castellón

We reconstruct the two-dimensional (2D) matter distributions in 20 high-mass galaxy clusters selected from the CLASH survey by using the new approach of performing a joint weak lensing analysis of 2D shear and azimuthally averaged…

We present results of a measurement of the shape of the density profile of galaxy groups and clusters traced by 43 335 Luminous Red Galaxies (LRGs) with spectroscopic redshifts from the Sloan Digital Sky Survey (SDSS). The galaxies are…

We study the clustering properties of the galaxy clusters detectable for the Planck satellite due to their thermal Sunyaev-Zel'dovich effect. We take the past light-cone effect and the redshift evolution of both the underlying dark matter…

Astrophysics · Physics 2009-11-07 Lauro Moscardini , Matthias Bartelmann , Sabino Matarrese , Paola Andreani

We probe the stellar mass growth in a sample of 568 Sunyaev-Zel'dovich (SZ) selected galaxy clusters with masses greater than $2.9 \times 10^{14} \mathrm{M_{\odot}}$ and redshifts in the range $0.2 < z < 0.8$, drawn from the fifth data…

We study the clustering properties of galaxy clusters expected to be observed by various forthcoming surveys both in the X-ray and sub-mm regimes by the thermal Sunyaev-Zel'dovich effect. Several different background cosmological models are…

Astrophysics · Physics 2014-11-18 C. Fedeli , L. Moscardini , M. Bartelmann

We present the results of a search for galaxy clusters in the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) microwave sky maps covering 16293 square degrees in three frequency bands, using data obtained over the lifetime of the…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-28 HSC Collaboration , M. Aguena , S. Aiola , S. Allam , F. Andrade-Oliveira , D. Bacon , N. Bahcall , N. Battaglia , E. S. Battistelli , S. Bocquet , B. Bolliet , J. R. Bond , D. Brooks , E. Calabrese , J. Carretero , S. K. Choi , L. N. da Costa , M. Costanzi , W. Coulton , T. M. Davis , S. Desai , M. J. Devlin , S. Dicker , P. Doel , A. J. Duivenvoorden , J. Dunkley , S. Ferraro , B. Flaugher , J. Frieman , P. A. Gallardo , M. Gatti , E. Gaztanaga , A. S. Gill , J. E. Golec , D. Gruen , R. A. Gruendl , M. Halpern , M. Hasselfield , J. C. Hill , M. Hilton , A. D. Hincks , S. R. Hinton , D. L. Hollowood , K. Honscheid , J. Hubmayr , K. M. Huffenberger , J. P. Hughes , D. J. James , M. Klein , K. Knowles , B. J. Koopman , A. Kosowsky , O. Lahav , E. Lee , Y. Lin , M. Lokken , M. S. Madhavacheril , A. A. Plazas Malagón , J. v. Marrewijk , J. L. Marshall , J. McMahon , J. Mena-Fernández , R. Miquel , H. Miyatake , J. J. Mohr , K. Moodley , T. Mroczkowski , S. Naess , F. Nati , A. Nicola , M. D. Niemack , R. L. C. Ogando , M. Oguri , J. Orlowski-Scherer , L. A. Page , B. Partridge , M. E. da Silva Pereira , A. Porredon , F. J. Qu , D. C. Ragavan , B. Ried Guachalla , A. K. Romer , A. Carnero Rosell , E. S. Rykoff , S. Samuroff , E. Sanchez , I. Sevilla-Noarbe , C. Sierra , C. Sifón , M. Smith , S. T. Staggs , E. Suchyta , M. E. C. Swanson , D. L. Tucker , C. Vargas , E. M. Vavagiakis , J. De Vicente , N. Weaverdyck , J. Weller , E. J. Wollack , I. Zubeldia

This is the first in a series of papers on the weak lensing effect caused by clusters of galaxies in Sloan Digital Sky Survey. The photometrically selected cluster sample, known as MaxBCG, includes ~130,000 objects between redshift 0.1 and…

We present the integrated mass profiles for a sample of ten nearby (z<=0.15), relaxed galaxy clusters, covering a temperature range of [2-9]keV, observed with XMM-Newton. The mass profiles were derived from the observed gas density and…

Astrophysics · Physics 2009-11-10 E. Pointecouteau , M. Arnaud , G. W. Pratt

Statistics that capture the directional dependence of the baryon distribution in the cosmic web enable unique tests of cosmology and astrophysical feedback. We use constrained oriented stacking of thermal Sunyaev-Zel'dovich (tSZ) maps to…

We present a stacked weak-lensing analysis of an approximately mass-selected sample of 50 galaxy clusters at 0.15<z<0.3, based on observations with Suprime-Cam on the Subaru Telescope. We develop a new method for selecting lensed background…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-19 Nobuhiro Okabe , Graham P. Smith , Keiichi Umetsu , Masahiro Takada , Toshifumi Futamase

Weak-lensing measurements of the averaged shear profiles of galaxy clusters binned by some proxy for cluster mass are commonly converted to cluster mass estimates under the assumption that these cluster stacks have spherical symmetry. In…

High-frequency, high-resolution imaging of the Sunyaev-Zel'dovich (SZ) effect is an important technique to study the complex structures of the atmospheres of merging galaxy clusters. Such observations are sensitive to the details of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 D. A. Prokhorov , S. Colafrancesco , T. Akahori , E. T. Million , S. Nagataki , K. Yoshikawa

Galaxy cluster number counts are an important probe to constrain cosmological parameters. One of the main ingredients of the analysis, along with accurate estimates of the clusters' masses, is the selection function, and in particular the…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-29 Stefano Gallo , Marian Douspis , Elie Soubrié , Laura Salvati

Galaxy clusters furnish extremely rich information on the contents and structure of our universe. The potential of galaxy cluster studies to constrain dark energy, for example, motivates a number of ambitious cluster surveys. Among these,…

Astrophysics · Physics 2007-05-23 James G. Bartlett

We use measurements from the South Pole Telescope (SPT) Sunyaev Zel'dovich (SZ) cluster survey in combination with X-ray measurements to constrain cosmological parameters. We present a statistical method that fits for the scaling relations…

We search for the signature of cosmological shocks in stacked gas pressure profiles of galaxy clusters using data from the South Pole Telescope (SPT). Specifically, we stack the latest Compton-y maps from the 2500 deg^2 SPT-SZ survey on the…

We present a new method for joint cosmological parameter inference and cluster mass calibration from a combination of weak lensing measurements and the abundance of thermal Sunyaev-Zel'dovich (tSZ) selected galaxy clusters. We combine…

Cosmology and Nongalactic Astrophysics · Physics 2020-10-14 Andrina Nicola , Jo Dunkley , David N. Spergel