Related papers: Strong lens systems search in the Dark Energy Surv…

SDSS-IV MaNGA: The Spectroscopic Discovery of Strongly Lensed Galaxies

We present a catalogue of 38 spectroscopically detected strong galaxy-galaxy gravitational lens candidates identified in the Sloan Digital Sky Survey IV (SDSS-IV). We were able to simulate narrow-band images for 8 of them demonstrating…

Astrophysics of Galaxies · Physics 2018-03-12 Michael S. Talbot , Joel R. Brownstein , Adam S. Bolton , Kevin Bundy , Brett H. Andrews , Brian Cherinka , Thomas E. Collett , Anupreeta More , Surhud More , Alessandro Sonnenfeld , Simona Vegetti , David A. Wake , Anne-Marie Weijmans , Kyle B. Westfall

On the evolution of environmental and mass properties of strong lens galaxies in COSMOS

Among the 100 strong lens candidates found in the COSMOS field, 20 with redshifts in the range [0.34,1.13], feature multiple images of background sources. Using the multi-wavelength coverage of the field and its spectroscopic follow-up, we…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 C. Faure , T. Anguita , D. Alloin , K. Bundy , A. Finoguenov , A. Leauthaud , C. Knobel , J. -P. Kneib , E. Jullo , O. Ilbert , A. M. Koekemoer , P. Capak , N. Scoville , L. Tasca

Gravitational lens candidates in the E-CDFS

We report ten lens candidates in the E-CDFS from the GEMS survey. Nine of the systems are new detections and only one of the candidates is a known lens system. For the most promising five systems including the known lens system, we present…

Cosmology and Nongalactic Astrophysics · Physics 2011-06-13 A. More , K. Jahnke , S. More , A. Gallazzi , E. F. Bell , M. Barden , B. Haeussler

The Sloan Lens ACS Survey. I. A Large Spectroscopically Selected Sample of Massive Early-Type Lens Galaxies

The Sloan Lens ACS (SLACS) Survey is an efficient Hubble Space Telescope Snapshot imaging survey for new galaxy-scale strong gravitational lenses. The targeted lens candidates are selected spectroscopically from within the Sloan Digital Sky…

Astrophysics · Physics 2010-11-11 Adam S. Bolton , Scott Burles , Leon V. E. Koopmans , Tommaso Treu , Leonidas A. Moustakas

Model Selection with Strong-lensing Systems

In this paper, we use an unprecedentedly large sample (158) of confirmed strong lens systems for model selection, comparing five well studied Friedmann-Robertson-Walker cosmologies: LCDM, wCDM (the standard model with a variable dark-energy…

Cosmology and Nongalactic Astrophysics · Physics 2018-09-19 Kyle Leaf , Fulvio Melia

Automated detection of galaxy-scale gravitational lenses in high resolution imaging data

Lens modeling is the key to successful and meaningful automated strong galaxy-scale gravitational lens detection. We have implemented a lens-modeling "robot" that treats every bright red galaxy (BRG) in a large imaging survey as a potential…

Astrophysics · Physics 2011-02-11 Philip J. Marshall , David W. Hogg , Leonidas A. Moustakas , Christopher D. Fassnacht , Marusa Bradac , Tim Schrabback , Roger D. Blandford

Weak lensing cosmology with convolutional neural networks on noisy data

Weak gravitational lensing is one of the most promising cosmological probes of the late universe. Several large ongoing (DES, KiDS, HSC) and planned (LSST, EUCLID, WFIRST) astronomical surveys attempt to collect even deeper and larger scale…

Cosmology and Nongalactic Astrophysics · Physics 2019-11-06 Dezső Ribli , Bálint Ármin Pataki , José Manuel Zorrilla Matilla , Daniel Hsu , Zoltán Haiman , István Csabai

The SNAP Strong Lens Survey

Basic considerations of lens detection and identification indicate that a wide field survey of the types planned for weak lensing and Type Ia SNe with SNAP are close to optimal for the optical detection of strong lenses. Such a…

Astrophysics · Physics 2009-11-10 Phil Marshall , Roger Blandford , Masao Sako

Dark Energy Survey Year 1 Results: Cosmological Constraints from Cosmic Shear

We use 26 million galaxies from the Dark Energy Survey (DES) Year 1 shape catalogs over 1321 deg$^2$ of the sky to produce the most significant measurement of cosmic shear in a galaxy survey to date. We constrain cosmological parameters in…

Cosmology and Nongalactic Astrophysics · Physics 2018-09-12 M. A. Troxel , N. MacCrann , J. Zuntz , T. F. Eifler , E. Krause , S. Dodelson , D. Gruen , J. Blazek , O. Friedrich , S. Samuroff , J. Prat , L. F. Secco , C. Davis , A. Ferté , J. DeRose , A. Alarcon , A. Amara , E. Baxter , M. R. Becker , G. M. Bernstein , S. L. Bridle , R. Cawthon , C. Chang , A. Choi , J. De Vicente , A. Drlica-Wagner , J. Elvin-Poole , J. Frieman , M. Gatti , W. G. Hartley , K. Honscheid , B. Hoyle , E. M. Huff , D. Huterer , B. Jain , M. Jarvis , T. Kacprzak , D. Kirk , N. Kokron , C. Krawiec , O. Lahav , A. R. Liddle , J. Peacock , M. M. Rau , A. Refregier , R. P. Rollins , E. Rozo , E. S. Rykoff , C. Sánchez , I. Sevilla-Noarbe , E. Sheldon , A. Stebbins , T. N. Varga , P. Vielzeuf , M. Wang , R. H. Wechsler , B. Yanny , T. M. C. Abbott , F. B. Abdalla , S. Allam , J. Annis , K. Bechtol , A. Benoit-Lévy , E. Bertin , D. Brooks , E. Buckley-Geer , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , M. Crocce , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , D. L. DePoy , S. Desai , H. T. Diehl , J. P. Dietrich , P. Doel , E. Fernandez , B. Flaugher , P. Fosalba , J. García-Bellido , E. Gaztanaga , D. W. Gerdes , T. Giannantonio , D. A. Goldstein , R. A. Gruendl , J. Gschwend , G. Gutierrez , D. J. James , T. Jeltema , M. W. G. Johnson , M. D. Johnson , S. Kent , K. Kuehn , S. Kuhlmann , N. Kuropatkin , T. S. Li , M. Lima , H. Lin , M. A. G. Maia , M. March , J. L. Marshall , P. Martini , P. Melchior , F. Menanteau , R. Miquel , J. J. Mohr , E. Neilsen , R. C. Nichol , B. Nord , D. Petravick , A. A. Plazas , A. K. Romer , A. Roodman , M. Sako , E. Sanchez , V. Scarpine , R. Schindler , M. Schubnell , M. Smith , R. C. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , D. L. Tucker , V. Vikram , A. R. Walker , J. Weller , Y. Zhang

Preliminary Target Selection for the DESI Luminous Red Galaxy (LRG) Sample

The DESI survey will observe more than 8 million candidate luminous red galaxies (LRGs) in the redshift range $0.3<z<1.0$. Here we present a preliminary version of the DESI LRG target selection developed using Legacy Surveys Data Release 8…

Cosmology and Nongalactic Astrophysics · Physics 2020-10-23 Rongpu Zhou , Jeffrey A. Newman , Kyle S. Dawson , Daniel J. Eisenstein , David D. Brooks , Arjun Dey , Biprateep Dey , Yutong Duan , Sarah Eftekharzadeh , Enrique Gaztañaga , Robert Kehoe , Martin Landriau , Michael E. Levi , Timothy C. Licquia , Aaron M. Meisner , John Moustakas , Adam D. Myers , Nathalie Palanque-Delabrouille , Claire Poppett , Francisco Prada , Anand Raichoor , David J. Schlegel , Michael Schubnell , Ryan Staten , Gregory Tarlé , Christophe Yèche

Euclid Quick Data Release (Q1). The Strong Lensing Discovery Engine C: Finding lenses with machine learning

Strong gravitational lensing has the potential to provide a powerful probe of astrophysics and cosmology, but fewer than 1000 strong lenses have been confirmed so far. With a 0.16'' resolution covering a third of the sky, the Euclid…

Astrophysics of Galaxies · Physics 2025-06-27 Euclid Collaboration , N. E. P. Lines , T. E. Collett , M. Walmsley , K. Rojas , T. Li , L. Leuzzi , A. Manjón-García , S. H. Vincken , J. Wilde , P. Holloway , A. Verma , R. B. Metcalf , I. T. Andika , A. Melo , M. Melchior , H. Domínguez Sánchez , A. Díaz-Sánchez , J. A. Acevedo Barroso , B. Clément , C. Krawczyk , R. Pearce-Casey , S. Serjeant , F. Courbin , G. Despali , R. Gavazzi , S. Schuldt , H. Degaudenzi , L. R. Ecker , W. J. R. Enzi , K. Finner , A. Galan , C. Giocoli , N. B. Hogg , K. Jahnke , S. Kruk , G. Mahler , A. More , B. C. Nagam , J. Pearson , A. Sainz de Murieta , C. Scarlata , D. Sluse , A. Sonnenfeld , C. Spiniello , T. T. Thai , C. Tortora , L. Ulivi , L. Weisenbach , M. Zumalacarregui , N. Aghanim , B. Altieri , A. Amara , S. Andreon , N. Auricchio , H. Aussel , C. Baccigalupi , M. Baldi , A. Balestra , S. Bardelli , P. Battaglia , R. Bender , F. Bernardeau , A. Biviano , A. Bonchi , D. Bonino , E. Branchini , M. Brescia , J. Brinchmann , S. Camera , G. Cañas-Herrera , V. Capobianco , C. Carbone , V. F. Cardone , J. Carretero , S. Casas , M. Castellano , G. Castignani , S. Cavuoti , K. C. Chambers , A. Cimatti , C. Colodro-Conde , G. Congedo , C. J. Conselice , L. Conversi , Y. Copin , A. Costille , H. M. Courtois , M. Cropper , A. Da Silva , G. De Lucia , A. M. Di Giorgio , C. Dolding , H. Dole , F. Dubath , C. A. J. Duncan , X. Dupac , S. Escoffier , M. Fabricius , M. Farina , R. Farinelli , F. Faustini , S. Ferriol , F. Finelli , S. Fotopoulou , M. Frailis , E. Franceschi , M. Fumana , S. Galeotta , K. George , W. Gillard , B. Gillis , P. Gómez-Alvarez , J. Gracia-Carpio , B. R. Granett , A. Grazian , F. Grupp , L. Guzzo , S. Gwyn , S. V. H. Haugan , W. Holmes , I. M. Hook , F. Hormuth , A. Hornstrup , P. Hudelot , M. Jhabvala , E. Keihänen , S. Kermiche , A. Kiessling , B. Kubik , M. Kümmel , M. Kunz , H. Kurki-Suonio , Q. Le Boulc'h , A. M. C. Le Brun , D. Le Mignant , S. Ligori , P. B. Lilje , V. Lindholm , I. Lloro , G. Mainetti , D. Maino , E. Maiorano , O. Mansutti , S. Marcin , O. Marggraf , M. Martinelli , N. Martinet , F. Marulli , R. Massey , S. Maurogordato , E. Medinaceli , S. Mei , Y. Mellier , M. Meneghetti , E. Merlin , G. Meylan , A. Mora , M. Moresco , L. Moscardini , R. Nakajima , C. Neissner , 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 , E. Romelli , M. Roncarelli , R. Saglia , Z. Sakr , A. G. Sánchez , D. Sapone , B. Sartoris , J. A. Schewtschenko , M. Schirmer , P. Schneider , T. Schrabback , A. Secroun , G. Seidel , M. Seiffert , S. Serrano , P. Simon , C. Sirignano , G. Sirri , A. Spurio Mancini , L. Stanco , J. Steinwagner , P. Tallada-Crespí , A. N. Taylor , I. Tereno , S. Toft , R. Toledo-Moreo , F. Torradeflot , I. Tutusaus , E. A. Valentijn , L. Valenziano , J. Valiviita , T. Vassallo , G. Verdoes Kleijn , A. Veropalumbo , Y. Wang , J. Weller , A. Zacchei , G. Zamorani , F. M. Zerbi , E. Zucca , V. Allevato , M. Ballardini , M. Bolzonella , E. Bozzo , C. Burigana , R. Cabanac , A. Cappi , D. Di Ferdinando , J. A. Escartin Vigo , L. Gabarra , J. Martín-Fleitas , S. Matthew , N. Mauri , A. Pezzotta , M. Pöntinen , C. Porciani , I. Risso , V. Scottez , M. Sereno , M. Tenti , M. Viel , M. Wiesmann , Y. Akrami , S. Anselmi , M. Archidiacono , F. Atrio-Barandela , C. Benoist , K. Benson , P. Bergamini , D. Bertacca , M. Bethermin , A. Blanchard , L. Blot , M. L. Brown , S. Bruton , A. Calabro , F. Caro , C. S. Carvalho , T. Castro , Y. Charles , F. Cogato , A. R. Cooray , O. Cucciati , S. Davini , F. De Paolis , G. Desprez , J. J. Diaz , S. Di Domizio , J. M. Diego , A. Enia , Y. Fang , A. G. Ferrari , A. Finoguenov , A. Fontana , A. Franco , K. Ganga , J. García-Bellido , T. Gasparetto , V. Gautard , E. Gaztanaga , F. Giacomini , F. Gianotti , G. Gozaliasl , M. Guidi , C. M. Gutierrez , A. Hall , W. G. Hartley , C. Hernández-Monteagudo , H. Hildebrandt , J. Hjorth , J. J. E. Kajava , Y. Kang , V. Kansal , D. Karagiannis , K. Kiiveri , C. C. Kirkpatrick , J. Le Graet , L. Legrand , M. Lembo , F. Lepori , G. Leroy , G. F. Lesci , J. Lesgourgues , T. I. Liaudat , S. J. Liu , A. Loureiro , J. Macias-Perez , G. Maggio , M. Magliocchetti , E. A. Magnier , F. Mannucci , R. Maoli , C. J. A. P. Martins , L. Maurin , M. Miluzio , P. Monaco , C. Moretti , G. Morgante , S. Nadathur , K. Naidoo , A. Navarro-Alsina , S. Nesseris , F. Passalacqua , K. Paterson , L. Patrizii , A. Pisani , D. Potter , S. Quai , M. Radovich , P. -F. Rocci , S. Sacquegna , M. Sahlén , D. B. Sanders , E. Sarpa , A. Schneider , D. Sciotti , E. Sellentin , L. C. Smith , K. Tanidis , G. Testera , R. Teyssier , S. Tosi , A. Troja , M. Tucci , C. Valieri , A. Venhola , D. Vergani , G. Vernardos , G. Verza , P. Vielzeuf , N. A. Walton , D. Scott

The Buzzard Flock: Dark Energy Survey Synthetic Sky Catalogs

We present a suite of 18 synthetic sky catalogs designed to support science analysis of galaxies in the Dark Energy Survey Year 1 (DES Y1) data. For each catalog, we use a computationally efficient empirical approach, ADDGALS, to embed…

Cosmology and Nongalactic Astrophysics · Physics 2019-01-09 Joseph DeRose , Risa H. Wechsler , Matthew R. Becker , Michael T. Busha , Eli S. Rykoff , Niall MacCrann , Brandon Erickson , August E. Evrard , Andrey Kravtsov , Daniel Gruen , Sahar Allam , Santiago Avila , Sarah Bridle , David Brooks , Elizabeth Buckley-Geer , Aurelio Carnero Rosell , Matias Carrasco Kind , Jorge Carretero , Francisco J. Castander , Ross Cawthon , Martin Crocce , Luiz N. da Costa , Christopher Davis , Juan De Vicente , Jörg P. Dietrich , Peter Doel , Alex Drlica-Wagner , Pablo Fosalba , Josh Frieman , Juan Garcia-Bellido , Gaston Gutierrez , Will G. Hartley , Devon L. Hollowood , Ben Hoyle , David J. James , Elisabeth Krause , Kyler Kuehn , Nikolay Kuropatkin , Marcos Lima , Marcio A. G. Maia , Felipe Menanteau , Christopher J. Miller , Ramon Miquel , Ricardo L. C. Ogando , Andrés Plazas Malagón , A. Kathy Romer , Eusebio Sanchez , Rafe Schindler , Santiago Serrano , Ignacio Sevilla-Noarbe , Mathew Smith , Eric Suchyta , Molly E. C. Swanson , Gregory Tarle , Vinu Vikram

Detection of Strongly Lensed Arcs in Galaxy Clusters with Transformers

Strong lensing in galaxy clusters probes properties of dense cores of dark matter halos in mass, studies the distant universe at flux levels and spatial resolutions otherwise unavailable, and constrains cosmological models independently.…

Instrumentation and Methods for Astrophysics · Physics 2023-01-04 Peng Jia , Ruiqi Sun , Nan Li , Yu Song , Runyu Ning , Hongyan Wei , Rui Luo

On machine learning search for gravitational lenses

We consider a machine learning algorithm to detect and identify strong gravitational lenses on sky images. First, we simulate different artificial but very close to reality images of galaxies, stars and strong lenses, using six different…

Instrumentation and Methods for Astrophysics · Physics 2021-04-06 H. G. Khachatryan

The CFHTLS-Strong Lensing Legacy Survey (SL2S): Investigating the group-scale lenses with the SARCS sample

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

Dark Energy Survey Year 3 Results: Galaxy clustering and systematics treatment for lens galaxy samples

In this work we present the galaxy clustering measurements of the two DES lens galaxy samples: a magnitude-limited sample optimized for the measurement of cosmological parameters, MagLim, and a sample of luminous red galaxies selected with…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-09 M. Rodríguez-Monroy , N. Weaverdyck , J. Elvin-Poole , M. Crocce , A. Carnero Rosell , F. Andrade-Oliveira , S. Avila , K. Bechtol , G. M. Bernstein , J. Blazek , H. Camacho , R. Cawthon , J. De Vicente , J. DeRose , S. Dodelson , S. Everett , X. Fang , I. Ferrero , A. Ferté , O. Friedrich , E. Gaztanaga , G. Giannini , R. A. Gruendl , W. G. Hartley , K. Herner , E. M. Huff , M. Jarvis , E. Krause , N. MacCrann , J. Mena-Fernández , J. Muir , S. Pandey , Y. Park , A. Porredon , J. Prat , R. Rosenfeld , A. J. Ross , E. Rozo , E. S. Rykoff , E. Sanchez , D. Sanchez Cid , I. Sevilla-Noarbe , M. Tabbutt , C. To , E. L. Wagoner , R. H. Wechsler , M. Aguena , S. Allam , A. Amon , J. Annis , D. Bacon , E. Baxter , E. Bertin , S. Bhargava , D. Brooks , D. L. Burke , M. Carrasco Kind , J. Carretero , F. J. Castander , A. Choi , C. Conselice , M. Costanzi , L. N. da Costa , M. E. S. Pereira , S. Desai , H. T. Diehl , B. Flaugher , P. Fosalba , J. Frieman , J. García-Bellido , T. Giannantonio , D. Gruen , J. Gschwend , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , B. Jain , D. J. James , K. Kuehn , N. Kuropatkin , M. Lima , M. A. G. Maia , M. March , J. L. Marshall , P. Melchior , F. Menanteau , C. J. Miller , R. Miquel , J. J. Mohr , R. Morgan , A. Palmese , F. Paz-Chinchón , A. Pieres , A. A. Plazas Malagón , A. Roodman , V. Scarpine , S. Serrano , M. Smith , M. Soares-Santos , E. Suchyta , G. Tarle , D. Thomas , T. N. Varga

Quasar Lenses in the South: searches over the DES public footprint

We have scanned 5000 deg$^{2}$ of Southern Sky to search for strongly lensed quasars with five methods, all source-oriented, but based on different assumptions and selection criteria. We analyse morphological searches based on Gaia…

Astrophysics of Galaxies · Physics 2019-08-21 Adriano Agnello , Chiara Spiniello

Galaxy-Galaxy Lensing in the DES Science Verification Data

We present galaxy-galaxy lensing results from 139 square degrees of Dark Energy Survey (DES) Science Verification (SV) data. Our lens sample consists of red galaxies, known as redMaGiC, which are specifically selected to have a low…

Cosmology and Nongalactic Astrophysics · Physics 2017-01-11 J. Clampitt , C. Sánchez , J. Kwan , E. Krause , N. MacCrann , Y. Park , M. A. Troxel , B. Jain , E. Rozo , E. S. Rykoff , R. H. Wechsler , J. Blazek , C. Bonnett , M. Crocce , Y. Fang , E. Gaztanaga , D. Gruen , M. Jarvis , R. Miquel , J. Prat , A. J. Ross , E. Sheldon , J. Zuntz , T. M. C. Abbott , F. B. Abdalla , R. Armstrong , M. R. Becker , A. Benoit-Lévy , G. M. Bernstein , E. Bertin , D. Brooks , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , S. Desai , H. T. Diehl , J. P. Dietrich , P. Doel , J. Estrada , A. E. Evrard , A. Fausti Neto , B. Flaugher , P. Fosalba , J. Frieman , R. A. Gruendl , K. Honscheid , D. J. James , K. Kuehn , N. Kuropatkin , O. Lahav , M. Lima , M. March , J. L. Marshall , P. Martini , P. Melchior , J. J. Mohr , R. C. Nichol , B. Nord , A. A. Plazas , A. K. Romer , E. Sanchez , V. Scarpine , M. Schubnell , I. Sevilla-Noarbe , R. C. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , V. Vikram , A. R. Walker

Deep Learning in Wide-field Surveys: Fast Analysis of Strong Lenses in Ground-based Cosmic Experiments

Searches and analyses of strong gravitational lenses are challenging due to the rarity and image complexity of these astronomical objects. Next-generation surveys (both ground- and space-based) will provide more opportunities to derive…

Astrophysics of Galaxies · Physics 2019-11-18 Clecio Bom , Jason Poh , Brian Nord , Manuel Blanco-Valentin , Luciana Dias

Finding Multiply-Lensed and Binary Quasars in the DESI Legacy Imaging Surveys

The time delay between multiple images of strongly lensed quasars is a powerful tool for measuring the Hubble constant (H0). To achieve H0 measurements with higher precision and accuracy using the time delay, it is crucial to expand the…

Cosmology and Nongalactic Astrophysics · Physics 2023-12-14 C. Dawes , C. Storfer , X. Huang , G. Aldering , A. Cikota , A. Dey , D. J. Schlegel