629 citations · 3.2k across the 21 of their papers we have counts for
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Separating baryons and dark matter in cluster cores: a full 2-D lensing and dynamic analysis of Abell 383 and MS2137-23
D. J. Sand, T. Treu, R. S. Ellis +2
(abridged) We utilize existing imaging and spectroscopic data for the galaxy clusters MS2137-23 and Abell 383 to present improved measures of the distribution of dark and baryonic…
Dark matter maps reveal cosmic scaffolding
Richard Massey, Jason Rhodes, Richard Ellis +17
Ordinary baryonic particles (such as protons and neutrons) account for only one-sixth of the total matter in the Universe. The remainder is a mysterious "dark matter" component, wh…
The Spitzer Legacy Survey of the HST-ACS 2 sq. deg. COSMOS Field: survey strategy and first analysis
D. B. Sanders, M. Salvato, H. Aussel +39
The Spitzer-COSMOS survey (S-COSMOS) is a Legacy program (Cycles 2+3) designed to carry out a uniform deep survey of the full 2 sq deg COSMOS field in all seven Spitzer bands (3.6,…
Weak Lensing from Space I: Instrumentation and Survey Strategy
Jason Rhodes, Alexandre Refregier, Richard Massey +1
A wide field space-based imaging telescope is necessary to fully exploit the technique of observing dark matter via weak gravitational lensing. This first paper in a three part ser…
Joint Cosmic Shear Measurements with the Keck and William Herschel Telescopes
David Bacon, Richard Massey, Alexandre Refregier +1
The recent measurements of weak lensing by large-scale structure present significant new opportunities for studies of the matter distribution in the universe. Here, we present a ne…
On the Continuous Formation of Field Spheroidal Galaxies in Hierarchical Models of Structure Formation
A. J. Benson, R. S. Ellis, F. Menanteau
We re-examine the assembly history of field spheroidals as a potentially powerful discriminant of galaxy formation models. Whereas monolithic collapse and hierarchical, merger-driv…
Radio sources in the 2dF Galaxy Redshift Survey - II. Local radio luminosity functions for AGN and star-forming galaxies at 1.4 GHz
Elaine M. Sadler, Carole A. Jackson, Russell D. Cannon +25
We have cross-matched the 1.4 GHz NRAO VLA Sky Survey (NVSS) with the first 210 fields observed in the 2dF Galaxy Redshift Survey (2dFGRS), covering an effective area of 325 square…
VLT Spectroscopy of Galaxies Lensed by Abell AC114: Implication for the Mass Model and the Study of Low-Luminosity Galaxies at High-Redshift
L. E. Campusano, R. Pello, J. -P. Kneib +5
We present the first results of a spectroscopic survey of faint lensed galaxie s in the core of the galaxy cluster AC114 (z=0.312) obtained from observations w ith the FORS1 spectr…
Numerical Simulations of Weak Lensing Measurements
David Bacon, Alexandre Refregier, Douglas Clowe +1
(Abridged) Weak gravitational lensing induces distortions on the images of background galaxies, and thus provides a direct measure of mass fluctuations in the universe. Since the d…
Detection of Weak Gravitational Lensing by Large-scale Structure
David Bacon, Alexandre Refregier, Richard Ellis
We report a detection of the coherent distortion of faint galaxies arising from gravitational lensing by foreground structures. This ``cosmic shear'' is potentially the most direct…
Radio Sources in the 2dF Galaxy Redshift Survey. I. Radio Source Populations
Elaine M. Sadler, V. J. McIntyre, C. A. Jackson +1
We present the first results from a study of the radio continuum properties of galaxies in the 2dF Galaxy Redshift Survey, based on thirty 2dF fields covering a total area of about…
Probing distant galaxies with lensing clusters
Roser Pello
Clusters of galaxies as gravitational lenses allow to study the stellar content and properties of high-z galaxies much fainter than the usual spectroscopic field surveys. We review…
A Statistical Analysis of the Galaxy Populations of Distant Luminous X-ray Clusters
Ian Smail, Alastair C. Edge, Richard S. Ellis +1
We present a deep UBI CCD survey using the Palomar 5-m telescope of a sample of high X-ray luminosity, distant clusters selected from the ROSAT All-Sky Survey. The 10 clusters lie…
Identification of a Gravitationally Lensed z=2.515 Star-Forming Galaxy
T. M. D. Ebbels, J. -F. Le Borgne, R. Pelló +4
We discuss the optical spectrum of a multiply-imaged arc resolved by HST in the =0.175 cluster A2218. The spectrum, obtained with LDSS-2 on the 4.2m William Herschel telescope,…
Faint galaxies close to QSOs with damped Lyman-alpha absorption systems
A. Aragon-Salamanca, R. S. Ellis, K. S. O'Brien
We have obtained very deep near-infrared images in the fields of 10 QSOs whose spectra contain damped Lyman-alpha absorption (DLA) systems with 1.7<z_abs <2.5. The main aim of our…