English
Related papers

Related papers: A New Survey for Giant Arcs

200 papers

Highly magnified lensed galaxies allow us to probe the morphological and spectroscopic properties of high-redshift stellar systems in great detail. However, such objects are rare, and there are only a handful of lensed galaxies which are…

Astrophysics · Physics 2009-11-13 Eran O. Ofek , Stella Seitz , Felix Klein

We present an extensive spectroscopic follow-up campaign of 29 strong lensing (SL) selected galaxy clusters discovered primarily in the Second Red-Sequence Cluster Survey (RCS-2). Our spectroscopic analysis yields redshifts for 52…

We measure the photometric properties of 105 giant arcs that were identified in systematic searches for galaxy-cluster-scale strong lenses in the Second Red-Sequence Cluster Survey (RCS-2) and the Sloan Digital Sky Survey (SDSS). The…

Cosmology and Nongalactic Astrophysics · Physics 2013-10-25 Matthew B. Bayliss

The Red-Sequence Cluster Survey (RCS) is a 100 square degree galaxy cluster survey designed to provide a large sample of optically selected clusters of galaxies with redshifts 0.1<z<1.4. The survey data are also useful for a variety of…

Astrophysics · Physics 2007-05-23 Henk Hoekstra , Howard Yee , Mike Gladders

We report on the serendipitous discovery in the Blanco Cosmology Survey (BCS) imaging data of a z = 0.9057 galaxy that is being strongly lensed by a massive galaxy cluster at a redshift of z=0.3838. The lens (BCS J2352-5452) was discovered…

We present the results of a visual search for galaxy-scale gravitational lenses in nearly 7 square degrees of Hubble Space Telescope (HST) images. The dataset comprises the whole imaging data ever taken with the Advanced Camera for Surveys…

Cosmology and Nongalactic Astrophysics · Physics 2017-03-22 R. S. Pawase , C. Faure , F. Courbin , R. Kokotanekova , G. Meylan

Deep Hubble Space Telescope images of superlative resolution obtained for the distant rich cluster AC114 (z=0.31) reveal a variety of gravitational lensing phenomena for which ground-based spectroscopy is available. We present a luminous…

Astrophysics · Physics 2009-10-22 Ian Smail , Warrick J. Couch , Richard S. Ellis , Ray M. Sharples

We developed an algorithm to find and characterize gravitationally lensed galaxies (arcs) to perform a comparison of the observed and simulated arc abundance. Observations are from the Cluster Lensing And Supernova survey with Hubble…

Evolution in the mass function of galaxy clusters sensitively traces both the expansion history of the Universe and cosmological structure formation. Robust cluster mass determinations are a key ingredient for a reliable measurement of this…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Holger Israel , Thomas Erben , Thomas H. Reiprich , Alexey Vikhlinin , Craig L. Sarazin , Peter Schneider

Discoveries of gamma-ray bursts (GRBs) have become commonplace in recent decades, totalling $\mathcal{O}(10^4)$ unique detections across various missions. However, there have been no confirmed discoveries of a gravitationally-lensed GRB,…

High Energy Astrophysical Phenomena · Physics 2026-04-09 Dan Ryczanowski , Benjamin P. Jones , Benjamin P. Gompertz , Graham P. Smith

The statistics of strongly lensed arcs in samples of galaxy clusters provide information on cluster structure that is complementary to that from individual clusters. However, samples of clusters that have been analyzed to date have been…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Assaf Horesh , Dan Maoz , Harald Ebeling , Gregor Seidel , Matthias Bartelmann

This is the first in a series of papers on the weak lensing effect caused by clusters of galaxies in Sloan Digital Sky Survey. The photometrically selected cluster sample, known as MaxBCG, includes ~130,000 objects between redshift 0.1 and…

We introduce a novel method to measure the masses of galaxy clusters at high redshift selected from optical and IR Spitzer data via the red-sequence technique. Lyman-break galaxies are used as a well understood, high-redshift background…

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

We examine the inner mass distribution of the relaxed galaxy cluster Abell 383 in deep 16-band HST/ACS+WFC3 imaging taken as part of the CLASH multi-cycle treasury program. Our program is designed to study the dark matter distribution in 25…

We leverage JWST's superb resolution to derive strong lensing mass maps of 14 clusters, spanning a redshift range of $z\sim0.25 - 1.06$ and a mass range of $M_{500}\sim2-12 \times 10^{14}M_\odot$, from the Strong LensIng and Cluster…

Wide-field optical imaging surveys will contain tens of thousands of new strong gravitational lenses. Some of these will have new and unusual image configurations, and so will enable new applications: for example, systems with high image…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Gilles Orban de Xivry , Phil Marshall

Cluster gravitational lensing surveys like the Hubble Space Telescope Frontier Fields survey will detect distant galaxies 10-50 times fainter than any yet discovered. Using these surveys to measure the luminosity function of such faint,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Anson D'Aloisio , Priyamvada Natarajan , Paul R. Shapiro

We present the Strong Lensing Legacy Survey - ARCS (SARCS) sample compiled from the final T0006 data release of the Canada-France-Hawaii Telescope Legacy Survey (CFHTLS) covering a total non-overlapping area of 159 sq.deg. We adopt a…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Anupreeta More , Remi Cabanac , Surhud More , Christophe Alard , Marceau Limousin , Jean-Paul Kneib , Raphael Gavazzi , Veronica Motta

Gravitational lensing magnification is measured with a significance of 9.7 sigma on a large sample of galaxy clusters in the Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS). This survey covers ~154 deg^2 and contains over 18,000…

Cosmology and Nongalactic Astrophysics · Physics 2014-03-05 Jes Ford , Hendrik Hildebrandt , Ludovic Van Waerbeke , Thomas Erben , Clotilde Laigle , Martha Milkeraitis , Christopher Morrison