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We report the discovery of an almost complete Einstein ring of diameter 10" in Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5). Spectroscopic data from the 6m telescope of the Special Astrophysical Observatory reveals that the…

We report the discovery of a new Einstein cross at redshift z_S = 2.701 based on Lyman-alpha emission in a cruciform configuration around an SDSS luminous red galaxy (z_L = 0.331). The system was targeted as a possible lens based on an…

We report on the discovery of a very bright z = 2.00 star-forming galaxy that is strongly lensed by a foreground z=0.422 luminous red galaxy (LRG). This system was found in a systematic search for bright arcs lensed by LRGs and brightest…

We report an ultra-bright lensed submillimeter galaxy at $z_{spec}=1.4796$, identified as a result of a full-sky cross-correlation of the AllWISE and Planck compact source catalogs aimed to search for bright submillimeter galaxies at $z…

Astrophysics of Galaxies · Physics 2021-09-22 A. Díaz-Sánchez , H. Dannerbauer , N. Sulzenauer , S. Iglesias-Groth , R. Rebolo

MG 1131+0456 is a radio-selected gravitational lens, and is the first known Einstein ring. Discovered in 1988, the system consists of a bright radio source imaged into a ring and two compact, flat-spectrum components separated by 2.1…

Astrophysics of Galaxies · Physics 2020-12-21 Daniel Stern , Dominic Walton

We report the discovery of a new low-redshift galaxy-scale gravitational lens, identified from a systematic search of publicly available MUSE observations. The lens galaxy, 2MASXJ04035024-0239275, is a giant elliptical at $z$ = 0.06604 with…

Astrophysics of Galaxies · Physics 2018-05-16 William P. Collier , Russell J. Smith , John R. Lucey

JWST has made several surprising discoveries, underscored by the `too early' appearance of well-formed galaxies and supermassive black holes. It recently also uncovered a compact galaxy (JWST-ER1g) associated with a complete Einstein ring…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-14 Fulvio Melia

Images of the CO 2-1 line emission, and the radio continuum emission, from the redshift 4.12 gravitationally lensed quasi-stellar object (QSO) PSS J2322+1944 reveal an Einstein ring with a diameter of 1.5". These observations are modeled as…

Astrophysics · Physics 2009-11-07 C. L. Carilli , G. F. Lewis , S. G. Djorgovski , A. Mahabal , P. Cox , F. Bertoldi , A. Omont

We report the serendipitous discovery of an "Einstein Ring" in the optical band from the Sloan Digital Sky Survey (SDSS) data and associated four images of a background source. The lens galaxy appears to be a nearby dwarf spheroid at a…

Astrophysics · Physics 2011-02-11 Kajal K Ghosh , D. Narasimha

We have discovered strong gravitational lensing by the galaxy ESO325-G004, in images obtained with the Advanced Camera for Surveys on the Hubble Space Telescope. The lens galaxy is a boxy group-dominant elliptical at z=0.0345, making this…

Astrophysics · Physics 2009-11-11 Russell J. Smith , John P. Blakeslee , John R. Lucey , John Tonry

A deep spectrum taken with the Echelle Spectrograph and Imager (ESI) at the Keck II Telescope as part of the Lenses Structure and Dynamics (LSD) Survey reveals the redshifts of the extremely red source of the radio Einstein Ring in the…

Astrophysics · Physics 2009-11-07 T. Treu , L. Koopmans

Gravitational lens modeling is presented for the first discovered example of a three-component source for which each component is quadruply imaged. The lens is a massive galaxy member of the cluster Cl J0152.7-1357 at z ~ 0.84. Taking…

Astrophysics · Physics 2009-11-13 C. Grillo , M. Lombardi , P. Rosati , G. Bertin , R. Gobat , R. Demarco , C. Lidman , V. Motta , M. Nonino

We report the discovery of a complete Einstein ring around the elliptical galaxy NGC 6505, at $z=0.042$. This is the first strong gravitational lens discovered in Euclid and the first in an NGC object from any survey. The combination of the…

Astrophysics of Galaxies · Physics 2025-02-11 C. M. O'Riordan , L. J. Oldham , A. Nersesian , T. Li , T. E. Collett , D. Sluse , B. Altieri , B. Clément , K. Vasan G. C. , S. Rhoades , Y. Chen , T. Jones , C. Adami , R. Gavazzi , S. Vegetti , D. M. Powell , J. A. Acevedo Barroso , I. T. Andika , R. Bhatawdekar , A. R. Cooray , G. Despali , J. M. Diego , L. R. Ecker , A. Galan , P. Gómez-Alvarez , L. Leuzzi , M. Meneghetti , R. B. Metcalf , M. Schirmer , S. Serjeant , C. Tortora , M. Vaccari , G. Vernardos , M. Walmsley , A. Amara , S. Andreon , N. Auricchio , H. Aussel , C. Baccigalupi , M. Baldi , A. Balestra , S. Bardelli , A. Basset , P. Battaglia , R. Bender , D. Bonino , E. Branchini , M. Brescia , J. Brinchmann , A. Caillat , S. Camera , V. Capobianco , C. Carbone , J. Carretero , S. Casas , F. J. Castander , M. Castellano , G. Castignani , S. Cavuoti , A. Cimatti , C. Colodro-Conde , G. Congedo , C. J. Conselice , L. Conversi , Y. Copin , L. Corcione , F. Courbin , H. M. Courtois , M. Cropper , A. Da Silva , H. Degaudenzi , G. De Lucia , A. M. Di Giorgio , J. Dinis , F. Dubath , C. A. J. Duncan , X. Dupac , S. Dusini , M. Farina , S. Farrens , F. Faustini , S. Ferriol , N. Fourmanoit , M. Frailis , E. Franceschi , M. Fumana , S. Galeotta , W. Gillard , B. Gillis , C. Giocoli , B. R. Granett , A. Grazian , F. Grupp , L. Guzzo , S. V. H. Haugan , J. Hoar , H. Hoekstra , W. Holmes , I. Hook , F. Hormuth , A. Hornstrup , P. Hudelot , K. Jahnke , M. Jhabvala , B. Joachimi , E. Keihänen , S. Kermiche , A. Kiessling , M. Kilbinger , R. Kohley , B. Kubik , M. Kümmel , M. Kunz , H. Kurki-Suonio , O. Lahav , R. Laureijs , D. Le Mignant , S. Ligori , P. B. Lilje , V. Lindholm , I. Lloro , G. Mainetti , E. Maiorano , O. Mansutti , O. Marggraf , K. Markovic , M. Martinelli , N. Martinet , F. Marulli , R. Massey , E. Medinaceli , S. Mei , M. Melchior , Y. Mellier , E. Merlin , G. Meylan , M. Moresco , L. Moscardini , R. Nakajima , R. C. Nichol , S. -M. Niemi , J. W. Nightingale , C. Padilla , S. Paltani , F. Pasian , K. Pedersen , W. J. Percival , V. Pettorino , S. Pires , G. Polenta , M. Poncet , L. A. Popa , L. Pozzetti , F. Raison , R. Rebolo , A. Renzi , J. Rhodes , G. Riccio , H. -W. Rix , E. Romelli , M. Roncarelli , E. Rossetti , B. Rusholme , R. Saglia , Z. Sakr , A. G. Sánchez , D. Sapone , B. Sartoris , P. Schneider , T. Schrabback , A. Secroun , G. Seidel , S. Serrano , C. Sirignano , G. Sirri , L. Stanco , J. Steinwagner , P. Tallada-Crespí , I. Tereno , R. Toledo-Moreo , F. Torradeflot , I. Tutusaus , L. Valenziano , T. Vassallo , G. Verdoes Kleijn , A. Veropalumbo , Y. Wang , J. Weller , A. Zacchei , G. Zamorani , E. Zucca , C. Burigana , P. Casenove , A. Mora , V. Scottez , M. Viel , M. Jauzac , H. Dannerbauer

Using spectroscopy from the Large Binocular Telescope and imaging from the Hubble Space Telescope we discovered the first strong galaxy lens at z(lens)>1. The lens has a secure photometric redshift of z=1.53+/-0.09 and the source is…

We report the discovery of an optical Einstein Ring in the Sculptor constellation, IAC J010127-334319, in the vicinity of the Sculptor Dwarf Spheroidal Galaxy. It is an almost complete ring ($\sim 300^{\circ}$) with a diameter of $\sim…

One of the surprising results from HST was the discovery that many of the most massive galaxies at z~2 are very compact, having half-light radii of only 1-2 kpc. The interpretation is that massive galaxies formed inside-out, with their…

Astrophysics of Galaxies · Physics 2023-09-18 Pieter van Dokkum , Gabriel Brammer , Bingjie Wang , Joel Leja , Charlie Conroy

An exquisite gravitational arc with a radius of 2.1" has been discovered around the z = 0.938 field elliptical galaxy CFRS03.1077 during HST observations of Canada-France Redshift Survey (CFRS) fields. Spectroscopic observations of the arc…

Astrophysics · Physics 2009-11-07 David Crampton , David Schade , F. Hammer , A. Matzkin , S. J. Lilly , O. LeFevre

We model the mass distribution in the recently discovered Einstein ring LBG J213512.73-010143 (the `Cosmic Eye') using archival Hubble Space Telescope imaging. We reconstruct the mass density profile of the z=0.73 lens and the surface…

Astrophysics · Physics 2009-06-23 Simon Dye , Ian Smail , A. M. Swinbank , H. Ebeling , A. C. Edge

In a previous paper, we outlined a new Bayesian method for inferring the properties of extended gravitational lenses, given data in the form of resolved images. This method holds the most promise for optimally extracting information from…

Astrophysics · Physics 2008-11-26 Brendon J. Brewer , Geraint F. Lewis
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