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Related papers: Validating Planck SZ2 Clusters with Optical Counte…

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We present a galaxy cluster survey based on XMM-Newton observations that are located in Stripe 82 of the Sloan Digital Sky Survey (SDSS). The survey covers an area of 11.25 deg$^2$. The X-ray cluster candidates were selected as…

Cosmology and Nongalactic Astrophysics · Physics 2016-10-07 Ali Takey , Florence Durret , Eman A. Mahmoud , Gamal B. Ali

The position angles of a large number of Abell and Shectman clusters (in total 637 clusters), identified in the Lick map as surface density enhancements, are estimated. Using published redshifts for 277 of these I have detected strong…

Astrophysics · Physics 2007-05-23 Manolis Plionis

Context. Clusters of galaxies are important for cosmology and astrophysics. They may be discovered through either the summed optical/IR radiation originating from their member galaxies or via X-ray emission originating from the hot…

Cosmology and Nongalactic Astrophysics · Physics 2016-12-21 Alexey Mints , Axel Schwope , Simon Rosen , François-Xavier Pineau , Francisco Carrera

Weak lensing surveys are emerging as an important tool for the construction of "mass selected" clusters of galaxies. We evaluate both the efficiency and completeness of a weak lensing selection by combining a dense, complete redshift…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Margaret J. Geller , Michael J. Kurtz , Ian P. Dell'Antonio , Massimo Ramella , Daniel G. Fabricant

About 2100 star-forming galaxy protocluster candidates at z=1-4 were identified at sub-mm wavelengths in the Planck all sky survey. Follow-up spectroscopic observations of a few candidates have confirmed the presence of actual galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2022-08-24 C. Gouin , N. Aghanim , H. Dole , M. Polletta , C. Park

We present a catalog of 200 clusters of galaxies serendipitously detected in 647 ROSAT PSPC pointings covering 158 square degrees. This is one of the largest X-ray selected cluster samples, comparable in size only to the ROSAT All-Sky…

Astrophysics · Physics 2009-10-30 A. Vikhlinin. B. R. McNamara , W. Forman , C. Jones , H. Quintana , A. Hornstrup

We have conducted an automated search for galaxy clusters within a contiguous 16 square degree I-band survey in the north Galactic hemisphere. A matched filter detection algorithm identifies 444 cluster candidates in the range 0.2 <= z <=…

Astrophysics · Physics 2009-11-07 Marc Postman , Tod R. Lauer , William Oegerle , Megan Donahue

A clean measurement of the evolution of the galaxy cluster mass function can significantly improve our understanding of cosmology from the rapid growth of cluster masses below z < 0.5. Here we examine the consistency of cluster catalogues…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-23 Pablo Jimeno , Tom Broadhurst , Jean Coupon , Keiichi Umetsu , Ruth Lazkoz

We search for the potential contamination in the Planck thermal Sunyaev-Zeldovich (tSZ) map by calculating the cross-correlation between the tSZ signal and weak lensing by large scale structure and the Cosmic Microwave Background (CMB). The…

Cosmology and Nongalactic Astrophysics · Physics 2019-11-06 Ziang Yan , Alireza Hojjati , Tilman Tröster , Gary Hinshaw , Ludovic van Waerbeke

Context: Galaxy clusters at high redshift are important to test cosmological models and models for the growth of structure. They are difficult to find in wide-angle optical surveys, however, leaving dedicated follow-up of X-ray selected…

Cosmology and Nongalactic Astrophysics · Physics 2017-09-11 Andreas Rabitz , Georg Lamer , Axel Schwope , Ali Takey

We apply simple optical and SZ cluster finders to mock galaxy catalogues and SZ flux maps created from dark matter halos in a (1 Gpc/h)^3 dark matter simulation, at redshifts 0.5 and 0.9. At each redshift, the two catalogues are then…

Astrophysics · Physics 2009-11-13 J. D. Cohn , Martin White

The potential for Planck to detect clusters of dusty, star-forming galaxies at z greater than 1 is tested by examining the Herschel-SPIRE images of Planck Early Release Compact Source Catalog (ERCSC) sources lying in fields observed by the…

We present a new, objectively defined catalog of candidate galaxy clusters based on the galaxy catalogs from the Digitized Second Palomar Observatory Sky Survey (DPOSS). This cluster catalog, derived from the best calibrated plates in the…

Context. We present an estimation of cosmological parameters with clusters of galaxies. Aims. We constrain the $\Omega_m$, $\sigma_8$, and $w$ parameters from a stand-alone sample of X-ray clusters detected in the 50 deg$^2$ XMM-XXL survey…

The Planck satellite has identified more than 2000 protocluster candidates with extreme star formation rates (SFRs). Here, we present the spectroscopic identification of a Planck-selected protocluster located in the Cosmos field, PHz…

We measure redshifts for 67 galaxies in the field of six cluster candidates from the ESO Imaging Survey (EIS). The cluster candidates are selected in the EIS patches C and D among those with estimated mean redshifts between 0.5 and 0.7. The…

We cross-match galaxy cluster candidates selected via their Sunyaev-Zel'dovich effect (SZE) signatures in 129.1 deg$^2$ of the South Pole Telescope 2500d SPT-SZ survey with optically identified clusters selected from the Dark Energy Survey…

Masses of clusters of galaxies from weak gravitational lensing analyses of ever larger samples are increasingly used as the reference to which baryonic scaling relations are compared. In this paper we revisit the analysis of a sample of 50…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-23 Henk Hoekstra , Ricardo Herbonnet , Adam Muzzin , Arif Babul , Andisheh Mahdavi , Massimo Viola , Marcello Cacciato

We measured the average Compton profile of 461 clusters detected jointly by the South Pole Telescope (SPT) and Planck. The number of clusters included in this analysis is about one order of magnitude larger than in previous analyses. We…

Cosmology and Nongalactic Astrophysics · Physics 2023-10-25 J. -B. Melin , G. W. Pratt