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Related papers: Cool Core Bias in Sunyaev-Zel'dovich Galaxy Cluste…

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Sunyaev-Zel'dovich (SZ) surveys are promising probes of cosmology - in particular for Dark Energy (DE) -, given their ability to find distant clusters and provide estimates for their mass. However, current SZ catalogs contain tens to…

Cosmology and Nongalactic Astrophysics · Physics 2014-05-28 M. Penna-Lima , M. Makler , C. A. Wuensche

This Letter explores influences of intracluster magnetic fields ($\gsim 1\mu$G) submerged in the hot electron gas on classic Sunyaev-Zel'dovich effect (SZE) and thermal bremsstrahlung in X-ray emissions. As the Larmor frequency is much…

Astrophysics · Physics 2009-11-10 Jian Hu , Yu-Qing Lou

Recent CHANDRA observations have revealed the presence of cold fronts in many clusters of galaxies. The cold fronts are believed to be produced by the bulk motions of massive, dense, cold gas clouds with respect to the hotter, more rarefied…

Astrophysics · Physics 2009-11-10 J. M. Diego , P. Mazzotta , J. Silk

Galaxy cluster surveys based on the Sunyaev-Zeldovich effect (SZE) mapping are expected from ongoing experiments. Such surveys are anticipated to provide a significant amount of information relevant to cosmology from the number counts…

Cosmology and Nongalactic Astrophysics · Physics 2010-11-30 Pierre Delsart , Domingos Barbosa , Alain Blanchard

The properties of galaxy clusters as a function of redshift can be utilized as an important cosmological tool. We present initial results from a program of follow-up observations of the Sunyaev-Zeldovich effect (SZE) in high redshift galaxy…

In cosmological structure formation models, massive non-linear objects in the process of formation, such as galaxy clusters, are surrounded by large-scale shocks at or around the expected virial radius. Direct observational evidence for…

Astrophysics · Physics 2009-11-10 Bence Kocsis , Zoltan Haiman , Zsolt Frei

The Sunyaev--Zel'dovich (SZ) effect is a global distortion of the Cosmic Microwave Background (CMB) spectrum as a result of its interaction with a hot electron plasma in the intracluster medium of large structures gravitationally viralized…

Cosmology and Nongalactic Astrophysics · Physics 2018-01-25 Alexander Bonilla , Jairo E. Castillo

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

We critically analyze the measurement of galaxy cluster gas masses, which is central to cosmological studies that rely on the galaxy cluster gas mass fraction. Using synthetic observations of numerically simulated clusters viewed through…

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

We present the results of a joint analysis of $Chandra$ X-ray and South Pole Telescope (SPT) SZ observations targeting the first sample of galaxy clusters at $0.3 < z < 1.3$, selected to be the progenitors of well-studied nearby clusters…

Cosmology and Nongalactic Astrophysics · Physics 2021-09-29 F. Ruppin , M. McDonald , L. E. Bleem , S. W. Allen , B. A. Benson , M. Calzadilla , G. Khullar , B. Floyd

We present a multi-wavelength study of the brightest cluster galaxies (BCGs) in a sample of the 95 most massive galaxy clusters selected from South Pole Telescope (SPT) Sunyaev-Zeldovich (SZ) survey. Our sample spans a redshift range of 0.3…

We present a multi-wavelength analysis of the four most relaxed clusters in the South Pole Telescope 2500 deg^2 survey, which lie at 0.55 < z < 0.75. This study, which utilizes new, deep data from Chandra and Hubble, along with ground-based…

By cross-correlating the 1.4 GHz FIRST catalog of radio sources with the Abell cluster catalog we have found an excess surface density by a factor ~5 of radio sources within a projected distance, r_p, of 0.1 Mpc (for h=0.65) from the…

Astrophysics · Physics 2009-11-10 Marcella Massardi , Gianfranco De Zotti

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

We present the observed relation between the cosmic microwave background (CMB) temperature decrement due to the Sunyaev-Zeldovich (SZ) effect and the X-ray luminosity of galaxy clusters. We discuss this relation in terms of the cluster…

Astrophysics · Physics 2009-10-31 Asantha R. Cooray

We present measurements of the radial profiles of the mass and galaxy number density around Sunyaev-Zel'dovich-selected clusters using both weak lensing and galaxy counts. The clusters are selected from the Atacama Cosmology Telescope Data…

Cosmology and Nongalactic Astrophysics · Physics 2021-09-15 T. Shin , B. Jain , S. Adhikari , E. J. Baxter , C. Chang , S. Pandey , A. Salcedo , D. H. Weinberg , A. Amsellem , N. Battaglia , M. Belyakov , T. Dacunha , S. Goldstein , A. V. Kravtsov , T. N. Varga , T. M. C. Abbott , M. Aguena , A. Alarcon , S. Allam , A. Amon , F. Andrade-Oliveira , J. Annis , D. Bacon , K. Bechtol , M. R. Becker , G. M. Bernstein , E. Bertin , S. Bocquet , J. R. Bond , D. Brooks , E. Buckley-Geer , D. L. Burke , A. Campos , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , R. Chen , A. Choi , M. Costanzi , L. N. da Costa , J. DeRose , S. Desai , J. De Vicente , M. J. Devlin , H. T. Diehl , J. P. Dietrich , S. Dodelson , P. Doel , C. Doux , A. Drlica-Wagner , K. Eckert , J. Elvin-Poole , S. Everett , S. Ferraro , I. Ferrero , A. Ferté , B. Flaugher , J. Frieman , P. A. Gallardo , M. Gatti , E. Gaztanaga , D. W. Gerdes , D. Gruen , R. A. Gruendl , G. Gutierrez , I. Harrison , W. G. Hartley , J. C. Hill , M. Hilton , S. R. Hinton , D. L. Hollowood , J. P. Hughes , D. J. James , M. Jarvis , T. Jeltema , B. J. Koopman , E. Krause , K. Kuehn , N. Kuropatkin , O. Lahav , M. Lima , M. Lokken , N. MacCrann , M. S. Madhavacheril , M. A. G. Maia , J. McCullough , J. McMahon , P. Melchior , F. Menanteau , R. Miquel , J. J. Mohr , K. Moodley , R. Morgan , J. Myles , F. Nati , A. Navarro-Alsina , M. D. Niemack , R. L. C. Ogando , L. A. Page , A. Palmese , B. Partridge , F. Paz-Chinchón , M. E. S. Pereira , A. Pieres , A. A. Plazas Malagón , J. Prat , M. Raveri , M. Rodriguez-Monroy , R. P. Rollins , A. K. Romer , E. S. Rykoff , M. Salatino , C. Sánchez , E. Sanchez , B. Santiago , V. Scarpine , A. Schillaci , L. F. Secco , S. Serrano , I. Sevilla-Noarbe , E. Sheldon , B. D. Sherwin , C. Sifón , M. Smith , M. Soares-Santos , S. T. Staggs , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , C. To , M. A. Troxel , I. Tutusaus , E. M. Vavagiakis , J. Weller , E. J. Wollack , B. Yanny , B. Yin , Y. Zhang

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…

Astrophysics · Physics 2009-06-23 A. Bonaldi , G. Tormen , K. Dolag , L. Moscardini

The recently approved COBRAS/SAMBA cosmic microwave background mission will also have a major impact on measurements of the Sunyaev-Zeldovich effect. The frequency of three of the channels (150 GHz, 217 GHz, 353 GHz) are chosen to optimize…

Astrophysics · Physics 2007-05-23 Martin G. Haehnelt
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