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The problem of detecting Sunyaev-Zel'dovich (SZ) clusters in multifrequency CMB observations is investigated using a number of filtering techniques. A multifilter approach is introduced, which optimizes the detection of SZ clusters on…

In recent years a plethora of future surveys have been suggested to constrain the nature of dark energy. In this paper we adapt a binning approach to the equation of state factor ``w'' and discuss how future weak lensing, galaxy cluster…

Astrophysics · Physics 2015-05-13 Jiayu Tang , Filipe B. Abdalla , Jochen Weller

Up to now, the largest sample of galaxy clusters selected in X-rays comes from the ROSAT All-Sky Survey (RASS). Although there have been many interesting clusters discovered with the RASS data, the broad point spread function (PSF) of the…

Astrophysics of Galaxies · Physics 2019-06-12 M. E. Ramos-Ceja , F. Pacaud , T. H. Reiprich , K. Migkas , L. Lovisari , G. Schellenberger

Galaxy cluster surveys provide a powerful means of studying the density and nature of the dark energy. The redshift distribution of detected clusters in a deep, large solid angle SZE or X-ray survey is highly sensitive to the dark energy…

Astrophysics · Physics 2009-11-07 Joseph J. Mohr , Brian OShea , August E. Evrard , John Bialek , Zoltan Haiman

The diffuse ultraviolet background radiation has been mapped over most of the sky with 2\arcmin \ resolution using data from the \textit{GALEX} survey. We utilize this map to study the correlation between the UV background and clusters of…

Astrophysics of Galaxies · Physics 2020-05-27 Brian Welch , Stephan McCandliss , Dan Coe

Stacking cosmic microwave background (CMB) maps around known galaxy clusters and groups provides a powerful probe of the distribution of hot gas in these systems via the Sunyaev-Zel'dovich (SZ) effect. A stacking analysis allows one to…

Cosmology and Nongalactic Astrophysics · Physics 2017-01-18 Vinu Vikram , Adam Lidz , Bhuvnesh Jain

We evaluate the construction methodology of an all-sky catalogue of galaxy clusters detected through the Sunyaev-Zel'dovich (SZ) effect. We perform an extensive comparison of twelve algorithms applied to the same detailed simulations of the…

The Planck satellite is expected to improve the measurement of most cosmological parameters by several factors with respect to current WMAP results. The actual performance may depend upon various aspects of the data analysis. In this paper…

Astrophysics · Physics 2010-11-02 L. P. L. Colombo , E. Pierpaoli , J. R. Pritchard

We perform a meta-study of recently published Redshift Space Distortion (RSD) measurements of the cosmological growth rate, f(z) \sigma_8(z). We analyse the latest results from the 6dFGS, BOSS, LRG, WiggleZ and VIPERS galaxy redshift…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Edward Macaulay , Ingunn Kathrine Wehus , Hans Kristian Eriksen

We use weak gravitational lensing measurements from Year 3 Dark Energy Survey data to calibrate the masses of 443 galaxy clusters selected via the Sunyaev-Zel'dovich effect from Atacama Cosmology Telescope Data Release 5 maps of the cosmic…

The Figure of Merit Science Working Group (FoMSWG) recently forecast the constraints on dark energy that will be achieved prior to the Joint Dark Energy Mission (JDEM) by ground-based experiments that exploit baryon acoustic oscillations,…

Cosmology and Nongalactic Astrophysics · Physics 2009-10-29 Carlos Cunha , Dragan Huterer , Joshua A. Frieman

We present the distance priors that we have derived from the 2015 Planck data, and use these in combination with the latest observational data from Type Ia Supernovae (SNe Ia) and galaxy clustering, to explore the systematic uncertainties…

Cosmology and Nongalactic Astrophysics · Physics 2016-10-26 Yun Wang , Mi Dai

Although infrared (IR) overall dust emission from clusters of galaxies has been statistically detected using data from the Infrared Astronomical Satellite (IRAS), it has not been possible to sample the spectral energy distribution (SED) of…

Cosmology and Nongalactic Astrophysics · Physics 2016-12-14 Planck Collaboration , R. Adam , P. A. R. Ade , N. Aghanim , M. Ashdown , J. Aumont , C. Baccigalupi , R. B. Barreiro , N. Bartolo , E. Battaner , K. Benabed , A. Benoit-Lévy , M. Bersanelli , P. Bielewicz , I. Bikmaev , A. Bonaldi , J. R. Bond , J. Borrill , F. R. Bouchet , R. Burenin , C. Burigana , E. Calabrese , J. -F. Cardoso , A. Catalano , H. C. Chiang , P. R. Christensen , E. Churazov , L. P. L. Colombo , C. Combet , B. Comis , F. Couchot , B. P. Crill , A. Curto , F. Cuttaia , L. Danese , R. J. Davis , P. de Bernardis , A. de Rosa , G. de Zotti , J. Delabrouille , F. -X. Désert , J. M. Diego , H. Dole , O. Doré , M. Douspis , A. Ducout , X. Dupac , F. Elsner , T. A. Enßlin , F. Finelli , O. Forni , M. Frailis , A. A. Fraisse , E. Franceschi , S. Galeotta , K. Ganga , R. T. Génova-Santos , M. Giard , Y. Giraud-Héraud , E. Gjerløw , J. González-Nuevo , A. Gregorio , A. Gruppuso , J. E. Gudmundsson , F. K. Hansen , D. L. Harrison , C. Hernández-Monteagudo , D. Herranz , S. R. Hildebrandt , E. Hivon , M. Hobson , A. Hornstrup , W. Hovest , G. Hurier , A. H. Jaffe , T. R. Jaffe , W. C. Jones , E. Keihänen , R. Keskitalo , I. Khamitov , T. S. Kisner , R. Kneissl , J. Knoche , M. Kunz , H. Kurki-Suonio , G. Lagache , A. Lähteenmäki , J. -M. Lamarre , A. Lasenby , M. Lattanzi , C. R. Lawrence , R. Leonardi , F. Levrier , M. Liguori , P. B. Lilje , M. Linden-Vørnle , M. López-Caniego , J. F. Macías-Pérez , B. Maffei , G. Maggio , N. Mandolesi , A. Mangilli , M. Maris , P. G. Martin , E. Martínez-González , S. Masi , S. Matarrese , A. Melchiorri , A. Mennella , M. Migliaccio , M. -A. Miville-Deschênes , A. Moneti , L. Montier , G. Morgante , D. Mortlock , D. Munshi , J. A. Murphy , P. Naselsky , F. Nati , P. Natoli , H. U. Nørgaard-Nielsen , D. Novikov , I. Novikov , C. A. Oxborrow , L. Pagano , F. Pajot , D. Paoletti , F. Pasian , O. Perdereau , L. Perotto , V. Pettorino , F. Piacentini , M. Piat , S. Plaszczynski , E. Pointecouteau , G. Polenta , N. Ponthieu , G. W. Pratt , S. Prunet , J. -L. Puget , J. P. Rachen , R. Rebolo , M. Reinecke , M. Remazeilles , C. Renault , A. Renzi , I. Ristorcelli , G. Rocha , C. Rosset , M. Rossetti , G. Roudier , J. A. Rubiño-Martín , B. Rusholme , D. Santos , M. Savelainen , G. Savini , D. Scott , V. Stolyarov , R. Stompor , R. Sudiwala , R. Sunyaev , D. Sutton , A. -S. Suur-Uski , J. -F. Sygnet , J. A. Tauber , L. Terenzi , L. Toffolatti , M. Tomasi , M. Tristram , M. Tucci , L. Valenziano , J. Valiviita , F. Van Tent , P. Vielva , F. Villa , L. A. Wade , I. K. Wehus , D. Yvon , A. Zacchei , A. Zonca

Using photometric data from the Dark Energy Survey and the Wide-field Infrared Survey Explorer, we estimate photometric redshifts for 105 million galaxies using the nearest-neighbour algorithm. From such a large data base, 151,244 clusters…

Cosmology and Nongalactic Astrophysics · Physics 2022-06-07 Z. L. Wen , J. L. Han

Possible explanations of the observed accelerated expansion of the Universe are the introduction of a dark energy component or the modifications of gravity at large distances. A particular difference between these scenarios is the dynamics…

Astrophysics · Physics 2007-05-23 Jia-Yu Tang , Jochen Weller , Alan Zablocki

Galaxy cluster surveys are power tools for studying the dark energy. In principle, the equation of state parameter w of the dark energy and its time evolution can be extracted from large solid angle, high yield surveys that deliver tens of…

Astrophysics · Physics 2007-05-23 Joseph J Mohr

We use multifrequency matched filters to estimate, in the WMAP 5-year data, the Sunyaev-Zel'dovich (SZ) fluxes of 893 ROSAT NORAS/REFLEX clusters spanning the luminosity range Lx,[0.1-2.4]keV = 2 10^{41} - 3.5 10^{45} erg s^{-1}. The…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 J. -B. Melin , J. G. Bartlett , J. Delabrouille , M. Arnaud , R. Piffaretti , G. W. Pratt

The redshift dependence of the abundance of galaxy clusters is very sensitive to the statistical properties of primordial density perturbations. It can thus be used to probe small deviations from Gaussian initial conditions. Such deviations…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 A. M. M. Trindade , P. P. Avelino , P. T. P. Viana

The determination of the thermodynamic properties of clusters of galaxies at intermediate and high redshift can bring new insights into the formation of large-scale structures. It is essential for a robust calibration of the mass-observable…

The PLANCK mission is the most sensitive all-sky CMB experiment currently planned. The High Frequency Instrument (HFI) will be especially suited for observing clusters of galaxies by their thermal Sunyaev-Zel'dovich (SZ) effect. In order to…