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Despite efforts over several decades, direct-detection experiments have not yet led to the discovery of the dark matter (DM) particle. This has led to increasing interest in alternatives to the Lambda CDM (LCDM) paradigm and alternative DM…

We present constraints on cosmic structure growth from the analysis of galaxy clustering and galaxy-galaxy lensing with galaxies from the Dark Energy Spectroscopic Instrument (DESI) Data Release 1. We analyze four samples drawn from the…

The Physics of the Accelerating Universe (PAU) Survey is an international project for the study of cosmological parameters associated with Dark Energy. PAU's 18-CCD camera (PAUCam), installed at the prime focus of the William Herschel…

The effective redshift distribution $n(z)$ of galaxies is a critical component in the study of weak gravitational lensing. Here, we introduce a new method for determining $n(z)$ for weak lensing surveys based on high-quality redshifts and…

We test the smooth dark energy paradigm using Dark Energy Survey (DES) Year 1 and Year 3 weak lensing and galaxy clustering data. Within the $\Lambda$CDM and $w$CDM model we separate the expansion and structure growth history by splitting…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-05 Kunhao Zhong , Evan Saraivanov , Vivian Miranda , Jiachuan Xu , Tim Eifler , Elisabeth Krause

We present cosmological constraints from the Dark Energy Survey (DES) using a combined analysis of angular clustering of red galaxies and their cross-correlation with weak gravitational lensing of background galaxies. We use a 139 square…

This work and its companion paper, Amon et al. (2021), present cosmic shear measurements and cosmological constraints from over 100 million source galaxies in the Dark Energy Survey (DES) Year 3 data. We constrain the lensing amplitude…

Cosmology and Nongalactic Astrophysics · Physics 2022-01-17 L. F. Secco , S. Samuroff , E. Krause , B. Jain , J. Blazek , M. Raveri , A. Campos , A. Amon , A. Chen , C. Doux , A. Choi , D. Gruen , G. M. Bernstein , C. Chang , J. DeRose , J. Myles , A. Ferté , P. Lemos , D. Huterer , J. Prat , M. A. Troxel , N. MacCrann , A. R. Liddle , T. Kacprzak , X. Fang , C. Sánchez , S. Pandey , S. Dodelson , P. Chintalapati , K. Hoffmann , A. Alarcon , O. Alves , F. Andrade-Oliveira , E. J. Baxter , K. Bechtol , M. R. Becker , A. Brandao-Souza , H. Camacho , A. Carnero Rosell , M. Carrasco Kind , R. Cawthon , J. P. Cordero , M. Crocce , C. Davis , E. Di Valentino , A. Drlica-Wagner , K. Eckert , T. F. Eifler , M. Elidaiana , F. Elsner , J. Elvin-Poole , S. Everett , P. Fosalba , O. Friedrich , M. Gatti , G. Giannini , R. A. Gruendl , I. Harrison , W. G. Hartley , K. Herner , H. Huang , E. M. Huff , M. Jarvis , N. Jeffrey , N. Kuropatkin , P. -F. Leget , J. Muir , J. Mccullough , A. Navarro Alsina , Y. Omori , Y. Park , A. Porredon , R. Rollins , A. Roodman , R. Rosenfeld , A. J. Ross , E. S. Rykoff , J. Sanchez , I. Sevilla-Noarbe , E. S. Sheldon , T. Shin , I. Tutusaus , T. N. Varga , N. Weaverdyck , R. H. Wechsler , B. Yanny , B. Yin , Y. Zhang , J. Zuntz , T. M. C. Abbott , M. Aguena , S. Allam , J. Annis , D. Bacon , E. Bertin , S. Bhargava , S. L. Bridle , D. Brooks , E. Buckley-Geer , D. L. Burke , J. Carretero , M. Costanzi , L. N. da Costa , J. De Vicente , H. T. Diehl , J. P. Dietrich , P. Doel , I. Ferrero , B. Flaugher , J. Frieman , J. García-Bellido , E. Gaztanaga , D. W. Gerdes , T. Giannantonio , J. Gschwend , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , B. Hoyle , D. J. James , T. Jeltema , K. Kuehn , O. Lahav , M. Lima , H. Lin , M. A. G. Maia , J. L. Marshall , P. Martini , P. Melchior , F. Menanteau , R. Miquel , J. J. Mohr , R. Morgan , R. L. C. Ogando , A. Palmese , F. Paz-Chinchón , D. Petravick , A. Pieres , A. A. Plazas Malagón , M. Rodriguez-Monroy , A. K. Romer , E. Sanchez , V. Scarpine , M. Schubnell , D. Scolnic , S. Serrano , M. Smith , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , C. To

The shear measurement from DECaLS (Dark Energy Camera Legacy Survey) provides an excellent opportunity for galaxy-galaxy lensing study with DESI (Dark Energy Spectroscopic Instrument) galaxies, given the large ($\sim 9000$ deg$^2$) sky…

We present first results from the Southern Cosmology Survey, a new multiwavelength survey of the southern sky coordinated with the Atacama Cosmology Telescope (ACT), a recently commissioned ground-based mm-band Cosmic Microwave Background…

Future dark energy space missions such as JDEM and EUCLID are being designed to survey the galaxy population to trace the geometry of the universe and the growth of structure, which both depend on the cosmological model. To reach the goal…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 S. Jouvel , J-P. Kneib , O. Ilbert , G. Bernstein , S. Arnouts , T. Dahlen , A. Ealet , B. Milliard , H. Aussel , P. Capak , A. Koekemoer , V. Le Brun , H. McCracken , M. Salvato , N. Scoville

We have conducted a search for strong gravitational lensing systems in the Dark Energy Spectroscopic Instrument (DESI) Legacy Imaging Surveys Data Release 10 (DR10). This paper is the fourth in a series of searches (following Huang et al.…

We present the first constraints on cosmology from the Dark Energy Survey (DES), using weak lensing measurements from the preliminary Science Verification (SV) data. We use 139 square degrees of SV data, which is less than 3\% of the full…

Cosmology and Nongalactic Astrophysics · Physics 2017-05-05 The Dark Energy Survey Collaboration , T. Abbott , F. B. Abdalla , S. Allam , A. Amara , J. Annis , R. Armstrong , D. Bacon , M. Banerji , A. H. Bauer , E. Baxter , M. R. Becker , A. Benoit-Lévy , R. A. Bernstein , G. M. Bernstein , E. Bertin , J. Blazek , C. Bonnett , S. L. Bridle , D. Brooks , C. Bruderer , E. Buckley-Geer , D. L. Burke , M. T. Busha , D. Capozzi , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , C. Chang , J. Clampitt , M. Crocce , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , R. Das , D. L. DePoy , S. Desai , H. T. Diehl , J. P. Dietrich , S. Dodelson , P. Doel , A. Drlica-Wagner , G. Efstathiou , T. F. Eifler , B. Erickson , J. Estrada , A. E. Evrard , A. Fausti Neto , E. Fernandez , D. A. Finley , B. Flaugher , P. Fosalba , O. Friedrich , J. Frieman , C. Gangkofner , J. Garcia-Bellido , E. Gaztanaga , D. W. Gerdes , D. Gruen , R. A. Gruendl , G. Gutierrez , W. Hartley , M. Hirsch , K. Honscheid , E. M. Huff , B. Jain , D. J. James , M. Jarvis , T. Kacprzak , S. Kent , D. Kirk , E. Krause , A. Kravtsov , K. Kuehn , N. Kuropatkin , J. Kwan , O. Lahav , B. Leistedt , T. S. Li , M. Lima , H. Lin , N. MacCrann , M. March , J. L. Marshall , P. Martini , R. G. McMahon , P. Melchior , C. J. Miller , R. Miquel , J. J. Mohr , E. Neilsen , R. C. Nichol , A. Nicola , B. Nord , R. Ogando , A. Palmese , H. V. Peiris , A. A. Plazas , A. Refregier , N. Roe , A. K. Romer , A. Roodman , B. Rowe , E. S. Rykoff , C. Sabiu , I. Sadeh , M. Sako , S. Samuroff , C. Sánchez , E. Sanchez , H. Seo , I. Sevilla-Noarbe , E. Sheldon , R. C. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , J. Thaler , D. Thomas , M. A. Troxel , V. Vikram , A. R. Walker , R. H. Wechsler , J. Weller , Y. Zhang , J. Zuntz

The arrival of direct electron detectors (DED) with high frame-rates in the field of scanning transmission electron microscopy has enabled many experimental techniques that require collection of a full diffraction pattern at each scan…

Materials Science · Physics 2021-08-11 Philipp M. Pelz , Ian Johnson , Colin Ophus , Peter Ercius , Mary C. Scott

We perform a joint analysis of the counts and weak lensing signal of redMaPPer clusters selected from the Dark Energy Survey (DES) Year 1 dataset. Our analysis uses the same shear and source photometric redshifts estimates as were used in…

Cosmology and Nongalactic Astrophysics · Physics 2020-07-15 DES Collaboration , Tim Abbott , Michel Aguena , Alex Alarcon , Sahar Allam , Steve Allen , James Annis , Santiago Avila , David Bacon , Alberto Bermeo , Gary Bernstein , Emmanuel Bertin , Sunayana Bhargava , Sebastian Bocquet , David Brooks , Dillon Brout , Elizabeth Buckley-Geer , David Burke , Aurelio Carnero Rosell , Matias Carrasco Kind , Jorge Carretero , Francisco Javier Castander , Ross Cawthon , Chihway Chang , Xinyi Chen , Ami Choi , Matteo Costanzi , Martin Crocce , Luiz da Costa , Tamara Davis , Juan De Vicente , Joseph DeRose , Shantanu Desai , H. Thomas Diehl , Jörg Dietrich , Scott Dodelson , Peter Doel , Alex Drlica-Wagner , Kathleen Eckert , Tim Eifler , Jack Elvin-Poole , Juan Estrada , Spencer Everett , August Evrard , Arya Farahi , Ismael Ferrero , Brenna Flaugher , Pablo Fosalba , Josh Frieman , Juan Garcia-Bellido , Marco Gatti , Enrique Gaztanaga , David Gerdes , Tommaso Giannantonio , Paul Giles , Sebastian Grandis , Daniel Gruen , Robert Gruendl , Julia Gschwend , Gaston Gutierrez , Will Hartley , Samuel Hinton , Devon L. Hollowood , Klaus Honscheid , Ben Hoyle , Dragan Huterer , David James , Mike Jarvis , Tesla Jeltema , Margaret Johnson , Stephen Kent , Elisabeth Krause , Richard Kron , Kyler Kuehn , Nikolay Kuropatkin , Ofer Lahav , Ting Li , Christopher Lidman , Marcos Lima , Huan Lin , Niall MacCrann , Marcio Maia , Adam Mantz , Jennifer Marshall , Paul Martini , Julian Mayers , Peter Melchior , Juan Mena , Felipe Menanteau , Ramon Miquel , Joe Mohr , Robert Nichol , Brian Nord , Ricardo Ogando , Antonella Palmese , Francisco Paz-Chinchon , Andrés Plazas Malagón , Judit Prat , Markus Michael Rau , Kathy Romer , Aaron Roodman , Philip Rooney , Eduardo Rozo , Eli Rykoff , Masao Sako , Simon Samuroff , Carles Sanchez , Alexandro Saro , Vic Scarpine , Michael Schubnell , Daniel Scolnic , Santiago Serrano , Ignacio Sevilla , Erin Sheldon , J. Allyn Smith , Eric Suchyta , Molly Swanson , Gregory Tarle , Daniel Thomas , Chun-Hao To , Michael A. Troxel , Douglas Tucker , Tamas Norbert Varga , Anja von der Linden , Alistair Walker , Risa Wechsler , Jochen Weller , Reese Wilkinson , Hao-Yi Wu , Brian Yanny , Zhuowen Zhang , Joe Zuntz

Strongly lensed Active Galactic Nuclei (AGN) with an observable time delay can be used to constrain the expansion history of the Universe through time-delay cosmography (TDC). As the sample of time-delay lenses grows to statistical size,…

DEEP is a multi-institutional program designed to undertake a major spectroscopic survey of 10,000+ field galaxies to I ~ 23 with a new instrument (DEIMOS) on the Keck II 10-m telescope. The scientific goals include exploring galaxy…

Astrophysics · Physics 2007-05-23 David C. Koo

Dark energy (DE) plays an important role in the expansion history of our universe. But we only got limited knowledge about its nature and properties after decades of study.In most numerical researches, DE is usually considered as a…

Cosmology and Nongalactic Astrophysics · Physics 2021-08-02 Ke Wang , Lu Chen