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Related papers: Lensing Model of MACS J1149.5+2223 - I. Cluster ma…

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We present a parametric strong lensing modeling of the galaxy cluster MS\,0440.5+0204 (located at $z$ = 0.19). We have performed a strong lensing mass reconstruction of the cluster using three different models. The first model uses the…

Cosmology and Nongalactic Astrophysics · Physics 2020-07-08 Tomás Verdugo , Eleazar R. Carrasco , Gael Foëx , Verónica Motta , Percy L. Gomez , Marceau Limousin , Juan Magaña , José A. de Diego

We describe a new non-parametric technique for reconstructing the mass distribution in galaxy clusters with strong lensing, i.e., from multiple images of background galaxies. The observed positions and redshifts of the images are considered…

Astrophysics · Physics 2020-11-25 H. M. AbdelSalam , P. Saha , L. L. R. Williams

We present a new strong lensing analysis of the galaxy cluster MACS J1206.2-0847 (MACS 1206), at z=0.44, using deep spectroscopy from CLASH-VLT and VLT/MUSE archival data in combination with imaging from the Cluster Lensing and Supernova…

We identify the largest known lensed images of a single spiral galaxy, lying close to the centre of the distant cluster MACS J1149.5+2223 ($z=0.544$). These images cover a total area of $\simeq 150 \Box\arcsec$ and are magnified $\simeq…

Cosmology and Nongalactic Astrophysics · Physics 2009-10-02 Adi Zitrin , Tom Broadhurst

We propose a new technique to reconstruct non-parametrically the projected mass distribution of galaxy clusters from their gravitational lens effect on background galaxies. The beauty of our technique, is that it combines information from…

Astrophysics · Physics 2007-05-23 Hanadi M. AbdelSalam , Prasenjit Saha , Liliya L. R. Williams

We present results of a gravitational-lensing and optical study of MACS ,J1423.8+2404 (z=0.545, MACS, J1423). Our analysis uses high-resolution images taken with the Hubble Space Telescope in the F555W and F814W passbands, ground based…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 M. Limousin , H. Ebeling , C. -J. Ma , A. M. Swinbank , G. P. Smith , J. Richard , A. C. Edge , M. Jauzac , J. -P. Kneib , P. Marshall , T. Schrabback

We present a statistical analysis of a sample of 20 strong lensing clusters drawn from the Local Cluster Substructure Survey (LoCuSS), based on high resolution Hubble Space Telescope imaging of the cluster cores and follow-up spectroscopic…

We present a new high-precision parametric strong lensing model of the galaxy cluster MACS J0416.1-2403, at z=0.396, which takes advantage of the MUSE Deep Lensed Field (MDLF), with 17.1h integration in the northeast region of the cluster,…

Lens magnification by galaxy clusters induces characteristic spatial variations in the number counts of background sources, amplifying their observed fluxes and expanding the area of sky, the net effect of which, known as magnification…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Keiichi Umetsu

We present a detailed strong lensing (SL) mass reconstruction of the core of the galaxy cluster MACSJ 2129.4-0741 ($\rm z_{cl}=0.589$) obtained by combining high-resolution HST photometry from the CLASH survey with new spectroscopic…

In a previous paper we investigated means for constraining the mass distribution of cluster galaxies by weak lensing. We concluded that a comprehensive method should treat the lensing effects of individual cluster galaxies and those…

Astrophysics · Physics 2009-10-30 Bernhard Geiger , Peter Schneider

We report the first weak-lensing detection of a large-scale filament funneling matter onto the core of the massive galaxy cluster MACSJ0717.5+3745. Our analysis is based on a mosaic of 18 multi-passband images obtained with ACS aboard the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Mathilde Jauzac , Eric Jullo , Jean-Paul Kneib , Harald Ebeling , Alexie Leauthaud , Cheng-Jiun Ma , Marceau Limousin , Richard Massey , Johan Richard

We present a gravitational lensing study of the massive galaxy cluster A2219 (redshift 0.22). This investigation is based on multicolour images from U through H, which allows photometric redshifts to be estimated for the background sources.…

Astrophysics · Physics 2007-05-23 J. Bezecourt , H. Hoekstra , M. E. Gray , H. M. AbdelSalam , K. Kuijken , R. S. Ellis

SDSS J2222+2745, at z = 0.489, is one of the few currently known lens clusters with multiple images of a background (z = 2.801) quasar with measured time delays. We combine imaging from the Hubble Space Telescope (HST) with recent Multi…

Astrophysics of Galaxies · Physics 2022-12-21 A. Acebron , C. Grillo , P. Bergamini , G. B. Caminha , P. Tozzi , A. Mercurio , P. Rosati , G. Brammer , M. Meneghetti , M. Nonino , E. Vanzella

We have shown that the cluster-mass reconstruction method which combines strong and weak gravitational lensing data, developed in the first paper in the series, successfully reconstructs the mass distribution of a simulated cluster. In this…

The image distortions of high-redshift galaxies caused by gravitational light deflection of foreground clusters of galaxies can be used to reconstruct the two-dimensional surface mass density of these clusters. We apply an unbiased…

Astrophysics · Physics 2007-05-23 Carolin Seitz , Jean-Paul Kneib , Peter Schneider , Stella Seitz

We present new mass estimates of the galaxy cluster MS2137.3-2353, inferred from X-ray and strong lensing analyses. This cluster exhibits an outstanding strong lensing configuration and indicates a well-relaxed dynamical state, being most…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Annamaria Donnarumma , Stefano Ettori , Massimo Meneghetti , Lauro Moscardini

We present Advanced Camera for Surveys observations of MACSJ1149.5+2223, an X-ray luminous galaxy cluster at z=0.544 discovered by the Massive Cluster Survey. The data reveal at least seven multiply-imaged galaxies, three of which we have…

We present CLUMI+, a self-consistent, multiprobe methodology for reconstructing the mass distribution in and around galaxy clusters by combining gravitational lensing and dynamical observations. Building on the joint likelihood framework of…

Cosmology and Nongalactic Astrophysics · Physics 2025-08-06 Keiichi Umetsu , Michele Pizzardo , Antonaldo Diaferio , Margaret J. Geller

We present a combined strong and weak gravitational-lensing analysis of the massive galaxy cluster MACS J1423.8+2404 ($z=0.545$, MACS J1423 hereafter), one of the most dynamically relaxed and massive cool-core clusters discovered in the…

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