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相关论文: Planck early results: Cluster Sunyaev-Zeldovich op…

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The cosmological potential of large-scale structure observations for cosmology have been extensively discussed in the litterature. In particular, it has recently been shown how Sunyaev-Zel'dovich (SZ) cluster surveys can be used to…

天体物理学 · 物理学 2007-05-23 J. B. Juin , D. Yvon , A. Refregier , C. Yeche

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 present evidence for the existence of the splashback radius in galaxy clusters selected using the Sunyaev-Zel'dovich effect. We show that the deprojected cross-correlation of galaxy clusters found in the Planck survey with galaxies…

宇宙学与河外天体物理 · 物理学 2019-04-17 Dominik Zuercher , Surhud More

We use high-resolution hydrodynamic re-simulations to investigate the properties of the thermal Sunyaev-Zel'dovich (SZ) effect from galaxy clusters. We compare results obtained using different physical models for the intracluster medium…

天体物理学 · 物理学 2009-06-23 A. Bonaldi , G. Tormen , K. Dolag , L. Moscardini

We present 30 GHz Sunyaev Zel'dovich observations of a statistically complete sample of galaxy clusters with OCRA-p. The clusters are the 18 most X-ray luminous clusters at z > 0.2 in the ROSAT Brightest Cluster Sample. We correct for…

We investigate the constraining power of current and future Sunyaev-Zeldovich cluster surveys on the f(R) gravity model. We use a Fisher matrix approach, adopt self-calibration for the mass- observable scaling relation, and evaluate…

宇宙学与河外天体物理 · 物理学 2015-06-03 Daisy S. Y. Mak , Elena Pierpaoli , Fabian Schmidt , Nicolo' Macellari

We present a first joint analysis of the power spectra of the thermal Sunyaev-Zeldovich (tSZ) effect measured by the Planck and the number density fluctuations of galaxies in the 2MASS redshift survey (2MRS) catalog, including their…

宇宙学与河外天体物理 · 物理学 2018-09-11 Ryu Makiya , Shin'ichiro Ando , Eiichiro Komatsu

We present a list of 15 clusters of galaxies, serendipitously detected by the XMM Cluster Survey (XCS), that have a high probability of detection by the Planck satellite. Three of them already appear in the Planck Early Sunyaev-Zel'dovich…

We confront the universal pressure profile (UPP) proposed by~\citet{Arnaud10} with the recent measurement of the cross-correlation function of the thermal Sunyaev-Zeldovich (tSZ) effect from Planck and weak gravitational lensing measurement…

宇宙学与河外天体物理 · 物理学 2021-12-01 Yin-Zhe Ma , Yan Gong , Tilman Troster , Ludovic Van Waerbeke

The mean pressure profile of the cluster population is a key element in cosmological analyses based on surveys of galaxy clusters observed through the Sunyaev-Zel'dovich (SZ) effect. A variation of both the shape and the amplitude of this…

宇宙学与河外天体物理 · 物理学 2020-02-12 F. Ruppin , F. Mayet , J. F. Macías-Pérez , L. Perotto

We present the results of spectroscopic redshift measurements for the galaxy clusters from the first all-sky Planck catalogue of the Sunyaev-Zeldovich sources, that have been mostly identified by means of the optical observations performed…

Weak gravitational lensing and the Sunyaev-Zel'dovich effect provide complementary information on the composition of clusters of galaxies. Preliminary results from cluster SZ observations with the Very Small Array are presented. A Bayesian…

天体物理学 · 物理学 2007-05-23 P. J. Marshall , K. Lancaster , M. P. Hobson , K. J. B. Grainge

We analyse the maps of the Sunyaev-Zel'dovich (SZ) signal of local galaxy clusters ($z<0.1$) observed by the $Planck$ satellite in order to classify their dynamical state through morphological features. To study the morphology of the…

宇宙学与河外天体物理 · 物理学 2025-06-18 Valentina Capalbo , Marco De Petris , Antonio Ferragamo , Weiguang Cui , Florian Ruppin , Gustavo Yepes

We use a complete sample of 38 richest maxBCG clusters to study the ICM-galaxy scaling relations and the halo mass selection properties of the maxBCG algorithm, based on X-ray and optical observations. The clusters are selected from the two…

We introduce the Marenostrum-MultiDark SImulations of galaxy Clusters (MUSIC) Dataset, one of the largest sample of hydrodynamically simulated galaxy clusters with more than 500 clusters and 2000 groups. The objects have been selected from…

宇宙学与河外天体物理 · 物理学 2015-06-05 Federico Sembolini , Gustavo Yepes , Marco De Petris , Stefan Gottloeber , Luca Lamagna , Barbara Comis

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…

宇宙学与河外天体物理 · 物理学 2015-05-18 Anya Chaudhuri , Subhabrata Majumdar

We examine a sample of $\sim 250 000$ "locally brightest galaxies" selected from the Sloan Digital Sky Survey to be central galaxies within their dark matter halos. These were previously stacked by the Planck Collaboration to measure the…

宇宙学与河外天体物理 · 物理学 2015-06-23 Michael E. Anderson , Massimo Gaspari , Simon D. M. White , Wenting Wang , Xinyu Dai

In a search for evidence of the short wavelength increment in the Sunyaev-Zel'dovich (SZ) effect, we have analyzed archival galaxy cluster data from the Sub-millimetre Common User Bolometer Array (SCUBA) on the James Clerk Maxwell…

天体物理学 · 物理学 2008-11-26 M. Zemcov , C. Borys , M. Halpern , P. Mauskopf , D. Scott