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The Chinese Space Station Optical Survey (CSS-OS) is a planned full sky survey operated by the Chinese Space Station Telescope (CSST). It can simultaneously perform the photometric imaging and spectroscopic slitless surveys, and will probe…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-08 Yan Gong , Xiangkun Liu , Ye Cao , Xuelei Chen , Zuhui Fan , Ran Li , Xiao-Dong Li , Zhigang Li , Xin Zhang , Hu Zhan

Context: The number of known strong gravitational lenses is expected to grow substantially in the next few years. The statistical combination of large samples of lenses has the potential of providing strong constraints on the inner…

Astrophysics of Galaxies · Physics 2021-07-07 Alessandro Sonnenfeld , Marius Cautun

Large area surveys have detected significant samples of galaxy clusters that can be used to constrain cosmological parameters, provided that the masses of the clusters are measured robustly. To improve the calibration of cluster masses…

We aim to probe the mass of SL2S\,J02140-0535, a galaxy group at $z$ = 0.44 from the Strong Lensing Legacy Survey (SL2S). We combine strong lensing modeling and dynamical constraints. The strong lensing analysis is based on multi-band…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 T. Verdugo , V. Motta , R. P. Muñoz , M. Limousin , R. Cabanac , J. Richard

The possibility of determining cosmological parameters on the basis of a wide set of observational data including the Abell-ACO cluster power spectrum and mass function, peculiar velocities of galaxies, the distribution of Ly-$\alpha$…

Astrophysics · Physics 2007-05-23 B. Novosyadlyj , R. Durrer , S. Gottloeber , V. N. Lukash , S. Apunevych

(abridged) We use a theoretical model to predict the clustering properties of galaxy clusters. Our technique accounts for past light-cone effects on the observed clustering and follows the non-linear evolution of the dark matter correlation…

Astrophysics · Physics 2009-10-31 Lauro Moscardini , Sabino Matarrese , H. J. Mo

We present the methodology for the weak lensing and galaxy clustering analyses of the Dark Energy Survey (DES) Year 6 data set. In this work, we design and validate the analysis pipeline for the cosmic shear, galaxy clustering plus…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-22 D. Sanchez-Cid , A. Ferté , J. Blazek , S. Samuroff , A. Amon , F. Andrade-Oliveira , J. M. Coloma-Nadal , J. Muir , A. Porredon , J. Prat , N. Weaverdyck , M. Yamamoto , D. Anbajagane , M. R. Becker , P. Carrilho , C. Chang , M. Crocce , G. Giannini , W. d'Assignies , J. DeRose , S. Dodelson , E. Krause , E. Legnani , J. Mena-Fernández , N. MacCrann , A. Pourtsidou , C. Preston , P. Rogozenski , M. Rodriguez-Monroy , R. Rosenfeld , E. Sanchez , I. Sevilla-Noarbe , M. Soares-Santos , C. To , M. A. Troxel , M. Tsedrik , B. Yin , J. Zuntz , T. M. C. Abbott , M. Aguena , S. Allam , O. Alves , S. Avila , D. Bacon , K. Bechtol , E. Bertin , S. Bocquet , D. Brooks , H. Camacho , R. Camilleri , A. Campos , A. Carnero Rosell , J. Carretero , F. J. Castander , R. Cawthon , A. Choi , L. N. da Costa , M. E. da Silva Pereira , T. M. Davis , J. De Vicente , S. Desai , C. Doux , A. Drlica-Wagner , T. Eifler , J. Elvin-Poole , S. Everett , A. E. Evrard , B. Flaugher , P. Fosalba , J. Frieman , J. García-Bellido , M. Gatti , E. Gaztanaga , P. Giles , K. Glazebrook , D. Gruen , G. Gutierrez , I. Harrison , K. Herner , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , B. Jain , D. J. James , N. Jeffrey , T. Kacprzak , K. Kuehn , O. Lahav , S. Lee , J. L. Marshall , F. Menanteau , R. Miquel , J. J. Mohr , J. Myles , R. C. Nichol , R. L. C. Ogando , A. Palmese , M. Paterno , W. J. Percival , A. A. Plazas Malagón , M. Raveri , A. Roodman , C. Sánchez , T. Schutt , E. Sheldon , N. Sherman , T. Shin , M. Smith , E. Suchyta , M. E. C. Swanson , M. Tabbutt , G. Tarle , D. Thomas , D. L. Tucker , V. Vikram , A. R. Walker , B. Yanny

Strong gravitational lensing at the galaxy scale is a valuable tool for various applications in astrophysics and cosmology. The primary uses of galaxy-scale lensing are to study elliptical galaxies' mass structure and evolution, constrain…

Astrophysics of Galaxies · Physics 2025-04-08 A. J. Shajib , G. Vernardos , T. E. Collett , V. Motta , D. Sluse , L. L. R. Williams , P. Saha , S. Birrer , C. Spiniello , T. Treu

In this paper, we used standard rulers and standard candles (separately and jointly) to explore five popular dark energy models under assumption of spatial flatness of the Universe. As standard rulers, we used a data set comprising 118…

Cosmology and Nongalactic Astrophysics · Physics 2018-01-08 Xiaolei Li , Shuo Cao , Xiaogang Zheng , Song Li , Marek Biesiada

We present a simulation-based forward-modeling framework for cosmological inference from optical galaxy-cluster samples, and apply it to the abundance and weak-lensing signals of DES-Y1 redMaPPer clusters. The model embeds…

The strongly lensed Supernova (SN) Encore at a redshift of $z = 1.949$, discovered behind the galaxy cluster MACS J0138$-$2155 at $z=0.336$, provides a rare opportunity for time-delay cosmography and studies of the SN host galaxy, where…

We present a new strong lensing (SL) model of the Hubble Frontier Fields galaxy cluster Abell 2744, at z=0.3072, by exploiting archival Hubble Space Telescope (HST) multi-band imaging and Multi Unit Spectroscopic Explorer (MUSE) follow-up…

Cosmology and Nongalactic Astrophysics · Physics 2023-02-08 P. Bergamini , A. Acebron , C. Grillo , P. Rosati , G. B. Caminha , A. Mercurio , E. Vanzella , G. Angora , G. Brammer , M. Meneghetti , M. Nonino

We present the joint tomographic analysis of galaxy-galaxy lensing and galaxy clustering in harmonic space, using galaxy catalogues from the first three years of observations by the Dark Energy Survey (DES Y3). We utilise the redMaGiC and…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-19 L. Faga , F. Andrade-Oliveira , H. Camacho , R. Rosenfeld , M. Lima , C. Doux , X. Fang , J. Prat , A. Porredon , M. Aguena , A. Alarcon , S. Allam , O. Alves , A. Amon , S. Avila , D. Bacon , K. Bechtol , M. R. Becker , G. M. Bernstein , S. Bocquet , D. Brooks , E. Buckley-Geer , A. Campos , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , R. Cawthon , C. Chang , R. Chen , A. Choi , J. Cordero , M. Crocce , L. N. da Costa , M. E. S. Pereira , J. DeRose , H. T. Diehl , S. Dodelson , A. Drlica-Wagner , J. Elvin-Poole , S. Everett , I. Ferrero , A. Ferté , B. Flaugher , P. Fosalba , J. Frieman , J. García-Bellido , M. Gatti , E. Gaztanaga , G. Giannini , D. Gruen , R. A. Gruendl , G. Gutierrez , I. Harrison , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , D. J. James , M. Jarvis , T. Jeltema , K. Kuehn , O. Lahav , S. Lee , C. Lidman , N. MacCrann , J. L. Marshall , J. McCullough , J. Mena-Fernández , R. Miquel , J. Myles , A. Navarro-Alsina , A. Palmese , S. Pandey , M. Paterno , A. Pieres , A. A. Plazas Malagón , M. Raveri , M. Rodriguez-Monroy , R. P. Rollins , A. J. Ross , E. S. Rykoff , S. Samuroff , C. Sánchez , E. Sanchez , D. Sanchez Cid , M. Schubnell , L. F. Secco , I. Sevilla-Noarbe , E. Sheldon , T. Shin , M. Smith , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , M. A. Troxel , I. Tutusaus , N. Weaverdyck , P. Wiseman , B. Yanny , B. Yin

Galaxy clusters are a recent cosmological probe. The precision and accuracy of the cosmological parameters inferred from these objects are affected by the knowledge of cluster physics, entering the analysis through the mass-observable…

Cosmology and Nongalactic Astrophysics · Physics 2020-10-28 Laura Salvati , Marian Douspis , Nabila Aghanim

The interpretation of cosmological observables requires the use of increasingly sophisticated theoretical models. Since these models are becoming computationally very expensive and display non-trivial uncertainties, the use of standard…

Cosmology and Nongalactic Astrophysics · Physics 2020-10-14 Marcos Pellejero-Ibañez , Raul E. Angulo , Giovanni Aricó , Matteo Zennaro , Sergio Contreras , Jens Stücker

In this paper we introduce the SEAGLE (i.e. Simulating EAGLE LEnses) program, that approaches the study of galaxy formation through strong gravitational lensing, using a suite of high-resolution hydrodynamic simulations, Evolution and…

We used 1627 faint (15.5< R<23) stars in five fields of the Calar Alto Deep Imaging Survey (CADIS) to estimate the structure parameters of the Galaxy. The results were derived by applying two complementary methods: first by fitting the…

Astrophysics · Physics 2009-11-11 S. Phleps , S. Drepper , K. Meisenheimer , B. Fuchs

Cluster mass profiles are tests of models of structure formation. Only two current observational methods of determining the mass profile, gravitational lensing and the caustic technique, are independent of the assumption of dynamical…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Margaret J. Geller , Antonaldo Diaferio , Kenneth J. Rines. Ana Laura Serra

The cosmic curvature, a fundamental parameter for cosmology could hold deep clues to inflation and cosmic origins. We propose an improved model-independent method to constrain the cosmic curvature by combining the constructed Hubble diagram…

Cosmology and Nongalactic Astrophysics · Physics 2024-02-19 Tonghua Liu , Shuo Cao , Jia Zhang , Marek Biesiada , Yuting Liu , Yujie Lian

Realizing Refsdal's original idea from 1964, we present estimates of the Hubble constant that are complementary to and potentially competitive with those of other cosmological probes. We use the observed positions of 89 multiple images,…

Cosmology and Nongalactic Astrophysics · Physics 2018-06-27 C. Grillo , P. Rosati , S. H. Suyu , I. Balestra , G. B. Caminha , A. Halkola , P. L. Kelly , M. Lombardi , A. Mercurio , S. A. Rodney , T. Treu