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200 papers

We present the results of a weak lensing survey of six high-redshift (z > 0.5), X-ray selected clusters of galaxies. We have obtained ultra-deep R-band images of each cluster with the Keck Telescope, and have measured a weak lensing signal…

Astrophysics · Physics 2009-10-31 D. Clowe , G. Luppino , N. Kaiser , I. Gioia

We describe the construction of MegaZ-LRG, a photometric redshift catalogue of over one million luminous red galaxies (LRGs) in the redshift range 0.4 < z < 0.7 with limiting magnitude i < 20. The catalogue is selected from the imaging data…

We present the results of a systematic search for galaxies in the redshift range z = 6 - 9, within the new, deep, near-infrared imaging of the Hubble Ultra Deep Field provided by the Wide Field Camera 3 (WFC3) on HST. We have performed full…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 R. J. McLure , J. S. Dunlop , M. Cirasuolo , A. M. Koekemoer , E. Sabbi , D. P. Stark , T. A. Targett , R. S. Ellis

We present a catalog of 4195 optically confirmed Sunyaev-Zel'dovich (SZ) selected galaxy clusters detected with signal-to-noise > 4 in 13,211 deg$^2$ of sky surveyed by the Atacama Cosmology Telescope (ACT). Cluster candidates were selected…

Cosmology and Nongalactic Astrophysics · Physics 2021-03-17 M. Hilton , C. Sifón , S. Naess , M. Madhavacheril , M. Oguri , E. Rozo , E. Rykoff , T. M. C. Abbott , S. Adhikari , M. Aguena , S. Aiola , S. Allam , S. Amodeo , A. Amon , J. Annis , B. Ansarinejad , C. Aros-Bunster , J. E. Austermann , S. Avila , D. Bacon , N. Battaglia , J. A. Beall , D. T. Becker , G. M. Bernstein , E. Bertin , T. Bhandarkar , S. Bhargava , J. R. Bond , D. Brooks , D. L. Burke , E. Calabrese , J. Carretero , S. K. Choi , A. Choi , C. Conselice , L. N. da Costa , M. Costanzi , D. Crichton , K. T. Crowley , R. Dünner , E. V. Denison , M. J. Devlin , S. R. Dicker , H. T. Diehl , J. P. Dietrich , P. Doel , S. M. Duff , A. J. Duivenvoorden , J. Dunkley , S. Everett , S. Ferraro , I. Ferrero , A. Ferté , B. Flaugher , J. Frieman , P. A. Gallardo , J. García-Bellido , E. Gaztanaga , D. W. Gerdes , P. Giles , J. E. Golec , M. B. Gralla , S. Grandis , D. Gruen , R. A. Gruendl , J. Gschwend , G. Gutierrez , D. Han , W. G. Hartley , M. Hasselfield , J. C. Hill , G. C. Hilton , A. D. Hincks , S. R. Hinton , S-P. P. Ho , K. Honscheid , B. Hoyle , J. Hubmayr , K. M. Huffenberger , J. P. Hughes , A. T. Jaelani , B. Jain , D. J. James , T. Jeltema , S. Kent , M. Carrasco Kind , K. Knowles , B. J. Koopman , K. Kuehn , O. Lahav , M. Lima , Y-T. Lin , M. Lokken , S. I. Loubser , N. MacCrann , M. A. G. Maia , T. A. Marriage , J. Martin , J. McMahon , P. Melchior , F. Menanteau , R. Miquel , H. Miyatake , K. Moodley , R. Morgan , T. Mroczkowski , F. Nati , L. B. Newburgh , M. D. Niemack , A. J. Nishizawa , R. L. C. Ogando , J. Orlowski-Scherer , L. A. Page , A. Palmese , B. Partridge , F. Paz-Chinchón , P. Phakathi , A. A. Plazas , N. C. Robertson , A. K. Romer , A. Carnero Rosell , M. Salatino , E. Sanchez , E. Schaan , A. Schillaci , N. Sehgal , S. Serrano , T. Shin , S. M. Simon , M. Smith , M. Soares-Santos , D. N. Spergel , S. T. Staggs , E. R. Storer , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , C. To , H. Trac , J. N. Ullom , L. R. Vale , J. Van Lanen , E. M. Vavagiakis , J. De Vicente , R. D. Wilkinson , E. J. Wollack , Z. Xu , Y. Zhang

We report weak-lensing masses for 51 of the most X-ray luminous galaxy clusters known. This cluster sample, introduced earlier in this series of papers, spans redshifts 0.15 < z_cl < 0.7, and is well suited to calibrate mass proxies for…

We present a new galaxy cluster catalog constructed from SDSS DR9 using an Adaptive Matched Filter technique. Our main catalog has 46,479 galaxy clusters with richness $\Lambda_{200} > 20$ in the redshift range 0.045 $\le z <$ 0.641 in…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-23 Panchajanya Banerjee , Thad Szabo , Elena Pierpaoli , Gerardo Franco , Maria Ortiz , Aris Oramas , Brianna Tornello

We report the first results from the Z-FOURGE survey: the discovery of a candidate galaxy cluster at z = 2.2 consisting of two compact overdensities with red galaxies detected at >20{\sigma} above the mean surface density. The discovery was…

Aims. We intend to compile a new galaxy group and cluster sample of the latest available SDSS data, adding several parameter for the purpose of studying the supercluster network, galaxy and group evolution, and their connection to the…

Cosmology and Nongalactic Astrophysics · Physics 2012-02-29 E. Tempel , E. Tago , L. J. Liivamägi

Groups of galaxies are the most common cosmic structures. However, due to the poor statistics, projection effects and the lack of accurate distances, our understanding of their dynamical and evolutionary status is still limited. This is…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Diego Capozzi , Marilena Spavone , Silvio Barbati , Maurizio Paolillo , Elisabetta De Filippis , Giuseppe Longo

A photometric redshift analysis of galaxies in the field of the wide-separation gravitational lens MG2016+112 reveals a population of 69 galaxies with photometric redshifts consistent with being in a cluster at the redshift of the giant…

Astrophysics · Physics 2007-05-23 S. Toft , G. Soucail , J. Hjorth

Hubble Space Telescope (HST) imaging of four rich, X-ray luminous, galaxy clusters (0.33<z<0.83) is used to produce quantitative morphological measurements for galaxies in their fields. Catalogs of these measurements are presented for 1642…

We present an all-sky catalogue of 395 nearby galaxy groups revealed in the Local Supercluster and its surroundings. The groups and their associations are identified among 10914 galaxies at |b|>15deg with radial velocities VLG<3500 km/s.…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Dmitry Makarov , Igor Karachentsev

We present spectroscopic observations of galaxies in the fields of 10 distant clusters for which we have previously presented deep imaging with WFPC2 on board the HST. The clusters span the redshift range z=0.37-0.56 and are the subject of…

We construct samples of optically-selected clusters and photometric luminous red galaxies (LRGs) from the Hyper Suprime-Cam Subaru Strategic Program final year dataset covering $\sim 1200$~deg$^2$. The cluster catalogs extend out to the…

We analyse the redshift space topology and geometry of the nearby Universe by computing the Minkowski functionals of the Updated Zwicky Catalogue (UZC). The UZC contains the redshifts of almost 20,000 galaxies, is 96% complete to the…

Astrophysics · Physics 2009-10-31 Jens Schmalzing , Antonaldo Diaferio

We study the dependence of galaxy clustering on luminosity and stellar mass at redshifts z ~ [0.2-1] using the first zCOSMOS 10K sample. We measure the redshift-space correlation functions xi(rp,pi) and its projection wp(rp) for sub-samples…

In this work, we present and characterize the galaxy cluster catalog detected by the WaZP cluster finder, which is not based on red-sequence identification, on the full six years of observations of the Dark Energy Survey (DES-Y6). The full…

We present a public catalog of galaxy groups constructed from the spectroscopic sample of galaxies in the fourth data release from the DEEP2 Galaxy Redshift Survey, including the Extended Groth Strip (EGS). The catalog contains 1165 groups…

We present a catalog of spectroscopically measured redshifts over $0 < z < 2$ and emission line fluxes for 1440 galaxies. The majority ($\sim$65\%) of the galaxies come from the HALO7D survey, with the remainder from the DEEPwinds program.…