English
Related papers

Related papers: Galaxy clusters identified from the SDSS DR6 and t…

200 papers

We present the first sample of 882 optically selected galaxy clusters in the Deep Lens Survey (DLS), selected with the Bayesian Cluster Finder. We create mock DLS data to assess completeness and purity rates, and find that both are at least…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 Begoña Ascaso , David Wittman , William Dawson

We study 203 (of 442) Swift AGN and Cluster Survey extended X-ray sources located in the SDSS DR8 footprint to search for galaxy over-densities in three dimensional space using SDSS galaxy photometric redshifts and positions near the Swift…

Cosmology and Nongalactic Astrophysics · Physics 2016-01-27 Rhiannon D. Griffin , Xinyu Dai , Christopher S. Kochanek , Joel N. Bregman

We present spectroscopic confirmation of five galaxy clusters at $1.25 < \textit{z} < 1.5$, discovered in the $2500$ deg$^{2}$ South Pole Telescope Sunyaev-Zel'dovich (SPT-SZ) survey. These clusters, taken from a mass-limited sample with a…

We present the results of the ground- and space-based optical and near-infrared (NIR) follow-up of 224 galaxy cluster candidates detected with the Sunyaev-Zel'dovich (SZ) effect in the 720 deg^2 of the South Pole Telescope (SPT) survey…

We study a sample of 19 galaxy clusters in the redshift range $0.15<z<0.30$ with highly complete spectroscopic membership catalogues (to $K < K^{\ast}(\rm z)+1.5$) from the Arizona Cluster Redshift Survey (ACReS); individual weak-lensing…

Cosmology and Nongalactic Astrophysics · Physics 2017-10-11 Sarah L. Mulroy , Sean L. McGee , Steven Gillman , Graham P. Smith , Chris P. Haines , Jessica Democles , Nobuhiro Okabe , Eiichi Egami

We have identified 335 galaxy cluster and group candidates spanning 0<z<2, using a 4.5um selected sample of galaxies in a 7.25 deg^2 region in the Spitzer/IRAC Shallow Survey. Using full redshift probability distributions for all galaxies,…

We have selected a sample of 88 nearby (z<0.1) galaxy clusters from the SDSS-DR4 with redshift information for the cluster members. We have derived global properties for each cluster, such as their mean recessional velocity, velocity…

Astrophysics · Physics 2019-08-19 J. A. L. Aguerri , R. Sanchez-Janssen , C. Munoz-Tunon

We first present a catalogue of photometric redshifts for 14.68 million galaxies derived from the 7-band photometric data of Hyper Suprime-Cam Subaru Strategic Program and the Wide-field Infrared Survey Explorer using the nearest-neighbour…

Cosmology and Nongalactic Astrophysics · Physics 2020-11-20 Z. L. Wen , J. L. Han

We apply a matched-filter cluster detection algorithm to the Canada-France-Hawaii Telescope Legacy Survey (CFHTLS) i-band data for the Deep-1, Deep-2, Deep-3 and Deep-4 fields covering a total of 4square degrees. To test the implemented…

Astrophysics · Physics 2009-11-11 L. F. Olsen , C. Benoist , A. Cappi , S. Maurogordato , A. Mazure , E. Slezak , C. Adami , C. Ferrari , F. Martel

We present results from a spectroscopic program targeting 26 strong lensing cluster cores that were visually identified in the Sloan Digital Sky Survey (SDSS) and the Second Red-Sequence Cluster Survey (RCS-2). The 26 galaxy cluster lenses…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-22 Matthew B. Bayliss , Joseph F. Hennawi , Michael D. Gladders , Benjamin P. Koester , Keren Sharon , Hakon Dahle , Masamune Oguri

We present a selection of candidates of clusters and protoclusters of galaxies identified in the photometric data of the HSC-SSP Wide Public Data Release 3 (PDR3), spanning the redshift range $\rm 0.1 \leq z \leq 2$. The selection method,…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-14 Marcelo C. Vicentin , Laerte Sodré , Michael A. Strauss , Erik V. R. de Lima , Pablo Araya-Araya

We present here an efficient method for selecting high luminosity and massive high redshift clusters of galaxies, crucially important tools in cosmology. By selecting bright and extremely X-ray loud (high F(X)/F(V)) sources, we were able to…

Astrophysics · Physics 2007-05-23 I. Cagnoni , M. Elvis , D. -W. Kim , P. Mazzotta , J. -S. Huang , A. Celotti

Ongoing and planned wide-area surveys at optical and infrared wavelengths should detect a few times 10^5 galaxy clusters, roughly 10% of which are expected to be at redshifts >~ 0.8. We investigate what can be learned about the X-ray…

Astrophysics · Physics 2008-11-26 Matthias Bartelmann , Simon D. M. White

Clusters of galaxies are important laboratories for understanding both galaxy evolution and constraining cosmological quantities. Any analysis of clusters, however, is best done when one can reliably determine which galaxies are members of…

Astrophysics · Physics 2009-10-31 R. J. Brunner , L. M. Lubin

We have conducted a redshift survey of sixteen cluster candidates from the Palomar Distant Cluster Survey (PDCS) to determine both the density of PDCS clusters and the accuracy of the estimated redshifts presented in the PDCS catalog…

Astrophysics · Physics 2009-10-31 B. P. Holden , R. C. Nichol , A. K. Romer , A. Metevier , M. Postman , M. P Ulmer , L. M. Lubin

Numerous methods for finding clusters at moderate to high redshifts have been proposed in recent years, at wavelengths ranging from radio to X-rays. In this paper we describe a new method for detecting clusters in two-band optical/near-IR…

Astrophysics · Physics 2008-11-26 Michael D. Gladders , H. K. C. Yee

We present the first high redshift (0.3 < z < 1.1) galaxy clusters found by systematically identifying optical low surface brightness fluctuations in the background sky. Using spectra obtained with the Keck telescope and I-band images from…

Astrophysics · Physics 2009-10-28 Dennis Zaritsky , Amy E. Nelson , Julianne J. Dalcanton , Anthony H. Gonzalez

The results of a search for distant clusters of galaxies performed using the I-band data obtained by the ESO Imaging Survey (EIS) are presented. Cluster candidates are identified using a matched filter algorithm, that provides not only an…

Astrophysics · Physics 2007-05-23 M. Scodeggio , L. F. Olsen , L. N. da Costa

We present the results of a search for galaxy clusters in the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) microwave sky maps covering 16293 square degrees in three frequency bands, using data obtained over the lifetime of the…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-28 HSC Collaboration , M. Aguena , S. Aiola , S. Allam , F. Andrade-Oliveira , D. Bacon , N. Bahcall , N. Battaglia , E. S. Battistelli , S. Bocquet , B. Bolliet , J. R. Bond , D. Brooks , E. Calabrese , J. Carretero , S. K. Choi , L. N. da Costa , M. Costanzi , W. Coulton , T. M. Davis , S. Desai , M. J. Devlin , S. Dicker , P. Doel , A. J. Duivenvoorden , J. Dunkley , S. Ferraro , B. Flaugher , J. Frieman , P. A. Gallardo , M. Gatti , E. Gaztanaga , A. S. Gill , J. E. Golec , D. Gruen , R. A. Gruendl , M. Halpern , M. Hasselfield , J. C. Hill , M. Hilton , A. D. Hincks , S. R. Hinton , D. L. Hollowood , K. Honscheid , J. Hubmayr , K. M. Huffenberger , J. P. Hughes , D. J. James , M. Klein , K. Knowles , B. J. Koopman , A. Kosowsky , O. Lahav , E. Lee , Y. Lin , M. Lokken , M. S. Madhavacheril , A. A. Plazas Malagón , J. v. Marrewijk , J. L. Marshall , J. McMahon , J. Mena-Fernández , R. Miquel , H. Miyatake , J. J. Mohr , K. Moodley , T. Mroczkowski , S. Naess , F. Nati , A. Nicola , M. D. Niemack , R. L. C. Ogando , M. Oguri , J. Orlowski-Scherer , L. A. Page , B. Partridge , M. E. da Silva Pereira , A. Porredon , F. J. Qu , D. C. Ragavan , B. Ried Guachalla , A. K. Romer , A. Carnero Rosell , E. S. Rykoff , S. Samuroff , E. Sanchez , I. Sevilla-Noarbe , C. Sierra , C. Sifón , M. Smith , S. T. Staggs , E. Suchyta , M. E. C. Swanson , D. L. Tucker , C. Vargas , E. M. Vavagiakis , J. De Vicente , N. Weaverdyck , J. Weller , E. J. Wollack , I. Zubeldia