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Related papers: Anomalous SZ Contribution to 3 Year WMAP Data

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We present in this letter a high resolution (22'' FWHM) extended map at 2.1mm of the Sunyaev-Zel'dovich effect toward the most luminous X-ray cluster, RXJ1347-1145. These observations have been performed with the DIABOLO photometer working…

Astrophysics · Physics 2009-10-31 E. Pointecouteau , M. Giard , F. X. Désert , B. Alain , J. P. Bernard , J. M. Lamarre , N. Coron

With the triaxial density profile of dark matter halos and the corresponding equilibrium gas distribution, we derive two-dimensional Sunyaev-Zeldovich (SZ) effect and X-ray surface brightness profiles for clusters of galaxies. It is found…

Astrophysics · Physics 2009-11-10 Y. -G. Wang , Z. -H. Fan

We performed individual weak-lensing (WL) mass measurements for 78 eROSITA's first All-Sky Survey (eRASS1) clusters in the footprint of Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) S19A. We did not adopt priors on the eRASS1 X-ray…

Residual foreground contamination in cosmic microwave background (CMB) maps, such as the residual contamination from thermal Sunyaev-Zeldovich (SZ) effect in the direction of galaxy clusters, can bias the cross-correlation measurements…

Cosmology and Nongalactic Astrophysics · Physics 2018-07-11 Tianyue Chen , Mathieu Remazeilles , Clive Dickinson

We present the results of a search for diffuse radio emission in a uniformly selected sample of 30 of the most massive Sunyaev-Zel'dovich selected galaxy clusters at $z > 1$, providing the first statistical constraints on the evolution of…

We present results from an SED analysis of two lensed high-z objects, the z=6.56 galaxy HCM6A behind the cluster Abell 370 discovered by Hu et al. (2002) and the triple arc at z~7 behind Abell 2218 found by Kneib et al. (2004). For HCM 6A…

Astrophysics · Physics 2017-03-22 Daniel Schaerer , Roser Pello

Clusters of galaxies produce negative features at wavelengths $\lambda > 1.25$ mm in CMB maps, by means of the thermal SZ effect, while point radio sources produce positive peaks. This fact implies that a distribution of unresolved SZ…

Astrophysics · Physics 2009-11-07 J. A. Rubino-Martin , R. A. Sunyaev

We report simultaneous observations at 1.2 and 2 mm, with a double channel photometer on the SEST Telescope, of the X-ray cluster RXJ0658-5557 in search for the Sunyaev-Zel'dovich (S-Z). The S-Z data were analyzed using the relativistically…

We demonstrate that optical data from SDSS, X-ray data from ROSAT and Chandra, and SZ data from Planck, can be modeled in a fully self-consistent manner. After accounting for systematic errors and allowing for property covariance, we find…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Eduardo Rozo , James G. Bartlett , August E. Evrard , Eli S. Rykoff

We report the discovery of a galaxy cluster at z=1.62 located in the Spitzer Wide-Area Infrared Extragalactic survey XMM-LSS field. This structure was selected solely as an overdensity of galaxies with red Spitzer/IRAC colors, satisfying…

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

We investigate whether the large scale structure environment of galaxy clusters imprints a selection bias on Sunyaev Zel'dovich (SZ) catalogs. Such a selection effect might be caused by line of sight (LoS) structures that add to the SZ…

Cosmology and Nongalactic Astrophysics · Physics 2015-08-06 Ralf Kosyra , Daniel Gruen , Stella Seitz , Annalisa Mana , Eduardo Rozo , Eli Rykoff , Ariel Sanchez , Ralf Bender

We investigate the clustering of galaxies selected in the 3.6 micron band of the Spitzer Wide-area Infrared Extragalactic (SWIRE) legacy survey. The angular two-point correlation function is calculated for eleven samples with flux limits of…

We report the detection of a high Galactic latitude, large scale, 7-sigma signal in WMAP 5yr and spatially correlated with the ecliptic plane. Two possible candidates are studied, namely unresolved sources and Zodiacal light emission. We…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 J. M Diego , M. Cruz , J. Gonzalez-Nuevo , M. Maris , Y. Ascasibar , C. Burigana

We report on observations of the Sunyaev-Zeldovich effect towards X-ray ROSAT clusters taken with a double channel (1.2 and 2 mm) photometer installed at the focus of the 15m SEST antenna in Chile. This paper describes the first results…

Mass calibration uncertainty is the largest systematic effect for using clusters of galaxies to constrain cosmological parameters. We present weak lensing mass measurements from the Canada-France-Hawaii Telescope Stripe 82 Survey for galaxy…