Related papers: Facilities for Dark Energy Investigations

Next Generation Redshift Surveys and the Origin of Cosmic Acceleration

Cosmologists are exploring two possible sets of explanations for the remarkable observation of cosmic acceleration: dark energy fills space or general relativity fails on cosmological scales. We define a null test parameter $\epsilon(k,a)…

Astrophysics · Physics 2008-11-26 Viviana Acquaviva , Amir Hajian , David N. Spergel , Sudeep Das

An overview of what current data can (and cannot yet) say about evolving dark energy

Recent measurements of Baryon Acoustic Oscillations (BAO) and distance moduli from Type Ia supernovae suggest a preference for Dynamical Dark Energy (DDE) scenarios characterized by a time-varying equation of state (EoS). This focused…

Cosmology and Nongalactic Astrophysics · Physics 2025-04-11 William Giarè , Tariq Mahassen , Eleonora Di Valentino , Supriya Pan

Dark Energy Survey Year 3 Results: Calibration of Lens Sample Redshift Distributions using Clustering Redshifts with BOSS/eBOSS

We present clustering redshift measurements for Dark Energy Survey (DES) lens sample galaxies to be used in weak gravitational lensing and galaxy clustering studies. To perform this measurement, we cross-correlate with spectroscopic…

Cosmology and Nongalactic Astrophysics · Physics 2022-06-09 R. Cawthon , J. Elvin-Poole , A. Porredon , M. Crocce , G. Giannini , M. Gatti , A. J. Ross , E. S. Rykoff , A. Carnero Rosell , J. DeRose , S. Lee , M. Rodriguez-Monroy , A. Amon , K. Bechtol , J. De Vicente , D. Gruen , R. Morgan , E. Sanchez , J. Sanchez , I. Sevilla-Noarbe , T. M. C. Abbott , M. Aguena , S. Allam , J. Annis , S. Avila , D. Bacon , E. Bertin , D. Brooks , D. L. Burke , M. Carrasco Kind , J. Carretero , F. J. Castander , A. Choi , M. Costanzi , L. N. da Costa , M. E. S. Pereira , K. Dawson , S. Desai , H. T. Diehl , K. Eckert , S. Everett , I. Ferrero , P. Fosalba , J. Frieman , J. García-Bellido , E. Gaztanaga , R. A. Gruendl , J. Gschwend , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , D. J. James , A. G. Kim , J. -P. Kneib , K. Kuehn , N. Kuropatkin , O. Lahav , M. Lima , H. Lin , M. A. G. Maia , P. Melchior , F. Menanteau , R. Miquel , J. J. Mohr , J. Muir , J. Myles , A. Palmese , S. Pandey , F. Paz-Chinchón , W. J. Percival , A. A. Plazas , A. Roodman , G. Rossi , V. Scarpine , S. Serrano , M. Smith , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , G. Tarle , C. To , M. A. Troxel , R. D. Wilkinson , the DES Collaboration

TASI Lectures on Cosmic Acceleration

In this series of lectures we review observational evidence for, and theoretical investigations into, cosmic acceleration and dark energy. The notes are in four sections. First I review the basic cosmological formalism to describe the…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-13 Rachel Bean

Report of the Dark Energy Task Force

Dark energy appears to be the dominant component of the physical Universe, yet there is no persuasive theoretical explanation for its existence or magnitude. The acceleration of the Universe is, along with dark matter, the observed…

Astrophysics · Physics 2007-05-23 Andreas Albrecht , Gary Bernstein , Robert Cahn , Wendy L. Freedman , Jacqueline Hewitt , Wayne Hu , John Huth , Marc Kamionkowski , Edward W. Kolb , Lloyd Knox , John C. Mather , Suzanne Staggs , Nicholas B. Suntzeff

DESAlert: Enabling Real-Time Transient Follow-Up with Dark Energy Survey Data

The Dark Energy Survey (DES) is currently undertaking an observational program imaging $1/4$ of the southern hemisphere sky with unprecedented photometric accuracy. In the process of observing millions of faint stars and galaxies to…

High Energy Astrophysical Phenomena · Physics 2016-10-05 A. Poci , K. Kuehn , the DES Collaboration , : , T. Abbott , F. B. Abdalla , S. Allam , A. H. Bauer , A. Benoit-Lévy , E. Bertin , D. Brooks , P. J. Brown , E. Buckley-Geer , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , R. Covarrubias , L. N. da Costa , C. B. D'Andrea , D. L. DePoy , S. Desai , J. P. Dietrich , C. E Cunha , T. F. Eifler , J. Estrada , A. E. Evrard , A. Fausti Neto , D. A. Finley , B. Flaugher , P. Fosalba , J. Frieman , D. Gerdes , D. Gruen , R. A. Gruendl , K. Honscheid , D. James , N. Kuropatkin , O. Lahav , T. S. Li , M. March , J. Marshall , K. W. Merritt , C. J. Miller , R. C. Nichol , B. Nord , R. Ogando , A. A. Plazas , A. K. Romer , A. Roodman , E. S. Rykoff , M. Sako , E. Sanchez , V. Scarpine , M. Schubnell , I. Sevilla , C. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , J. Thaler , R. C. Thomas , D. Tucker , A. R. Walker , W. Wester

Dark Energy in Practice

In this paper we review a part of the approaches that have been considered to explain the extraordinary discovery of the late time acceleration of the Universe. We discuss the arguments that have led physicists and astronomers to accept…

Cosmology and Nongalactic Astrophysics · Physics 2010-12-13 Domenico Sapone

The cosmological analysis of DES 3$\times$2pt data from the Effective Field Theory of Large-Scale Structure

We analyze the Dark Energy Survey (DES) Year 3 data using predictions from the Effective Field Theory of Large-Scale Structure (EFTofLSS). Specifically, we fit three two-point observables (3$\times$2pt), galaxy clustering, galaxy-galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-07 Guido D'Amico , Alexandre Refregier , Leonardo Senatore , Pierre Zhang

The BigBOSS Experiment

BigBOSS is a Stage IV ground-based dark energy experiment to study baryon acoustic oscillations (BAO) and the growth of structure with a wide-area galaxy and quasar redshift survey over 14,000 square degrees. It has been conditionally…

Instrumentation and Methods for Astrophysics · Physics 2011-06-10 D. Schlegel , F. Abdalla , T. Abraham , C. Ahn , C. Allende Prieto , J. Annis , E. Aubourg , M. Azzaro , S. Bailey. C. Baltay , C. Baugh , C. Bebek , S. Becerril , M. Blanton , A. Bolton , B. Bromley , R. Cahn , P. -H. Carton , J. L. Cervantes-Cota , Y. Chu , M. Cortes , K. Dawson , A. Dey , M. Dickinson , H. T. Diehl , P. Doel , A. Ealet , J. Edelstein , D. Eppelle , S. Escoffier , A. Evrard , L. Faccioli , C. Frenk , M. Geha , D. Gerdes , P. Gondolo , A. Gonzalez-Arroyo , B. Grossan , T. Heckman , H. Heetderks , S. Ho , K. Honscheid , D. Huterer , O. Ilbert , I. Ivans , P. Jelinsky , Y. Jing , D. Joyce , R. Kennedy , S. Kent , D. Kieda , A. Kim , C. Kim , J. -P. Kneib , X. Kong , A. Kosowsky , K. Krishnan , O. Lahav , M. Lampton , S. LeBohec , V. Le Brun , M. Levi , C. Li , M. Liang , H. Lim , W. Lin , E. Linder , W. Lorenzon , A. de la Macorra , Ch. Magneville , R. Malina , C. Marinoni , V. Martinez , S. Majewski , T. Matheson , R. McCloskey , P. McDonald , T. McKay , J. McMahon , B. Menard , J. Miralda-Escude , M. Modjaz , A. Montero-Dorta , I. Morales , N. Mostek , J. Newman , R. Nichol , P. Nugent , K. Olsen , N. Padmanabhan , N. Palanque-Delabrouille , I. Park , J. Peacock , W. Percival , S. Perlmutter , C. Peroux , P. Petitjean , F. Prada , E. Prieto , J. Prochaska , K. Reil , C. Rockosi , N. Roe , E. Rollinde , A. Roodman , N. Ross , G. Rudnick , V. Ruhlmann-Kleider , J. Sanchez , D. Sawyer , C. Schimd , M. Schubnell , R. Scoccimaro , U. Seljak , H. Seo , E. Sheldon , M. Sholl , R. Shulte-Ladbeck , A. Slosar , D. S. Smith , G. Smoot , W. Springer , A. Stril , A. S. Szalay , C. Tao , G. Tarle , E. Taylor , A. Tilquin , J. Tinker , F. Valdes , J. Wang , T. Wang , B. A. Weaver , D. Weinberg , M. White , M. Wood-Vasey , J. Yang , X. Yang. Ch. Yeche , N. Zakamska , A. Zentner , C. Zhai , P. Zhang

Dark Energy Survey Year 1 Results: Methods for Cluster Cosmology and Application to the SDSS

We perform the first blind analysis of cluster abundance data. Specifically, we derive cosmological constraints from the abundance and weak-lensing signal of \redmapper\ clusters of richness $\lambda\geq 20$ in the redshift range…

Cosmology and Nongalactic Astrophysics · Physics 2019-11-13 M. Costanzi , E. Rozo , M. Simet , Y. Zhang , A. E. Evrard , A. Mantz , E. S. Rykoff , T. Jeltema , D. Gruen , S. Allen T. McClintock , A. K. Romer , A. von der Linden , A. Farahi , J. DeRose , T. N. Varga , J. Weller , P. Giles , D. L. Hollowood , S. Bhargava , A. Bermeo-Hernandez , X. Chen , T. M. C. Abbott , F. B. Abdalla , S. Avila , K. Bechtol , D. Brooks , E. Buckley-Geer , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , M. Crocce , C. E. Cunha , L. N. da Costa , C. Davis , J. De Vicente , H. T. Diehl , J. P. Dietrich , P. Doel , T. F. Eifler , J. Estrada , B. Flaugher , P. Fosalba , J. Frieman , J. García-Bellido , E. Gaztanaga , D. W. Gerdes , T. Giannantonio , R. A. Gruendl , J. Gschwend , G. Gutierrez , W. G. Hartley , K. Honscheid , B. Hoyle , D. J. James , E. Krause , K. Kuehn , N. Kuropatkin , M. Lima , H. Lin , M. A. G. Maia , M. March , J. L. Marshall , P. Martini , F. Menanteau , C. J. Miller , R. Miquel , J. J. Mohr , R. L. C. Ogando , A. A. Plazas , A. Roodman , E. Sanchez , V. Scarpine , R. Schindler , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , E. Sheldon , M. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , R. H. Wechsler

The Nature of Dark Energy and Constraints on Its Hypothetical Constituents from Force Measurements

This review considers the theoretical approaches to the understanding of dark energy which comprises approximately 68\% of the energy of our Universe and explains an acceleration in its expansion. Following a discussion of the main approach…

General Relativity and Quantum Cosmology · Physics 2024-03-12 Galina L. Klimchitskaya , Vladimir M. Mostepanenko

DECam integration tests on telescope simulator

The Dark Energy Survey (DES) is a next generation optical survey aimed at measuring the expansion history of the universe using four probes: weak gravitational lensing, galaxy cluster counts, baryon acoustic oscillations, and Type Ia…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 M. Soares-Santos , J. Annis , M. Bonati , E. Buckley-Geer , H. Cease , D. DePoy , G. Derylo , H. T. Diehl , A. Elliott , J. Estrada , D. Finley , B. Flaugher , J. Frieman , J. Hao , K. Honscheid , I. Karliner , K. Krempetz , K. Kuehn , S. Kuhlmann , K. Kuk , H. Lin , W. Merrit , E. Neilsen , L. Scott , S. Serrano , T. Shaw , K. Schultz , W. Stuermer , A. Sypniewski , J. Thaler , A. Walker , J. Walton , W. Wester , B. Yanny

Reanalyzing DESI DR1: 2. Constraints on Dark Energy, Spatial Curvature, and Neutrino Masses

We carry out an independent re-analysis of the Dark Energy Spectroscopic Instrument (DESI) public dataset, focusing on extensions to the standard cosmological model, $\Lambda$CDM. Utilizing the dataset and Effective Field Theory (EFT)-based…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-15 Anton Chudaykin , Mikhail M. Ivanov , Oliver H. E. Philcox

The HST Cosmos Project: Contribution from the Subaru Telescope

The Cosmic Evolution Survey (COSMOS) is a Hubble Space Telescope (HST) treasury project.The COSMOS aims to perform a 2 square degree imaging survey of an equatorial field in $I$(F814W) band, using the Advanced Camera for Surveys (ACS). Such…

Astrophysics · Physics 2015-06-24 Yoshiaki Taniguchi , N. Z. Scoville , D. B. Sanders , B. Mobasher , H. Aussel , P. Capak , M. Ajiki , T. Murayama , S. Miyazaki , Y. Komiyama , Y. Shioya , T. Nagao , S. Sasaki , R. Sumiya , J. Koda , L. Heinlein , Y. Hatakeyama , H. Karoji , the COSMOS Team

The Dark Energy Survey: more than dark energy - an overview

This overview article describes the legacy prospect and discovery potential of the Dark Energy Survey (DES) beyond cosmological studies, illustrating it with examples from the DES early data. DES is using a wide-field camera (DECam) on the…

Cosmology and Nongalactic Astrophysics · Physics 2016-11-18 Dark Energy Survey Collaboration , T. Abbott , F. B. Abdalla , J. Aleksic , S. Allam , A. Amara , D. Bacon , E. Balbinot , M. Banerji , K. Bechtol , A. Benoit-Levy , G. M. Bernstein , E. Bertin , J. Blazek , C. Bonnett , S. Bridle , D. Brooks , R. J. Brunner , E. Buckley-Geer , D. L. Burke , G. B. Caminha , D. Capozzi , J. Carlsen , A. Carnero-Rosell , M. Carollo , M. Carrasco-Kind , J. Carretero , F. J. Castander , L. Clerkin , T. Collett , C. Conselice , M. Crocce , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , T. M. Davis , S. Desai , H. T. Diehl , J. P. Dietrich , S. Dodelson , P. Doel , A. Drlica-Wagner , J. Estrada , J. Etherington , A. E. Evrard , J. Fabbri , D. A. Finley , B. Flaugher , R. J. Foley , P. Rosalba , J. Frieman , J. Garcia-Bellido , E. Gaztanaga , D. W. Gerdes , T. Giannantonio , D. A. Goldstein , D. Gruen , R. A. Gruendl , P. Guarnieri , G. Gutierrez , W. Hartley , K. Honscheid , B. Jain , D. J. James , T. Jeltema , S. Jouvel , R. Kessler , A. King , D. Kirk , R. Kron , K. Kuehn , N. Kuropatkin , O. Lahav , T. S. Li , M. Lima , H. Lin , M. A. G. Maia , M. Makler , M. Manera , C. Maraston , J. L. Marshall , P. Martini , R. G. McMahon , P. Melchior , A. Merson , C. J. Miller , R. Miquel , J. J. Mohr , X. Morice-Atkinson , K. Naidoo , E. Neilsen , R. C. Nichol , B. Nord , R. Ogando , F. Ostrovski , A. Palmese , A. Papadopoulos , H. Peiris , J. Peoples , W. J. Percival , A. A. Plazas , S. L. Reed , A. Refregier , A. K. Romer , A. Roodman , A. Ross , E. Rozo , E. S. Rykoff , I. Sadeh , M. Sako , C. Sanchez , E. Sanchez , B. Santiago , V. Scarpine , M. Schubnell , I. Sevilla-Noarbe , E. Sheldon , M. Smith , R. C. Smith , M. Soares-Santos , F. Sobreira , M. Soumagnac , E. Suchyta , M. Sullivan , M. Swanson , G. Tarle , J. Thaler , D. Thomas , R. C. Thomas , D. Tucker , J. D. Vieira , V. Vikram , A. R. Walker , R. H. Wechsler , J. Weller , W. Wester , L. Whiteway , H. Wilcox , B. Yanny , Y. Zhang , J. Zuntz

A test of the nature of cosmic acceleration using galaxy redshift distortions

Observations of distant supernovae indicate that the Universe is now in a phase of accelerated expansion the physical cause of which is a mystery. Formally, this requires the inclusion of a term acting as a negative pressure in the…

Astrophysics · Physics 2009-06-23 L. Guzzo , M. Pierleoni , B. Meneux , E. Branchini , O. Le Fevre , C. Marinoni , B. Garilli , J. Blaizot , G. De Lucia , A. Pollo , H. J. McCracken , D. Bottini , V. Le Brun , D. Maccagni , J. P. Picat , R. Scaramella , M. Scodeggio , L. Tresse , G. Vettolani , A. Zanichelli , C. Adami , S. Arnouts , S. Bardelli , M. Bolzonella , A. Bongiorno , A. Cappi , S. Charlot , P. Ciliegi , T. Contini , O. Cucciati , S. de la Torre , K. Dolag , S. Foucaud , P. Franzetti , I. Gavignaud , O. Ilbert , A. Iovino , F. Lamareille , B. Marano , A. Mazure , P. Memeo , R. Merighi , L. Moscardini , S. Paltani , R. Pello , E. Perez-Montero , L. Pozzetti , M. Radovich , D. Vergani , G. Zamorani , E. Zucca

Measuring the Growth of Structure with Spectroscopically Identified Groups and Clusters

Number counts of galaxy clusters offer a very promising probe of the Dark Energy (DE) equation-of-state parameter, $w$. The basic goal is to measure abundances of these objects as a function of redshift, compare this to a theoretical…

Astrophysics · Physics 2009-09-29 M. Davis , B. F. Gerke , A. L. Coil , M. C. Cooper , R. Yan , J. A. Newman , S. M. Faber , D. Koo , P. Guhathakurta

The extended Baryon Oscillation Spectroscopic Survey (eBOSS): testing a new approach to measure the evolution of the structure growth

The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is one of the first of a new generation of galaxy redshift surveys that will cover a large range in redshift with sufficient resolution to measure the baryon acoustic oscillations…

Cosmology and Nongalactic Astrophysics · Physics 2018-12-26 Rossana Ruggeri , Will J. Percival , Eva-Maria Mueller , Hector Gil-Marin , Fangzhou Zhu , Nikhil Padmanabhan , Gong-Bo Zhao

Dark Energy and Modified Gravity

Despite two decades of tremendous experimental and theoretical progress, the riddle of the accelerated expansion of the Universe remains to be solved. On the experimental side, our understanding of the possibilities and limitations of the…

Cosmology and Nongalactic Astrophysics · Physics 2019-03-29 Anže Slosar , Tamara Davis , Daniel Eisenstein , Renée Hložek , Mustapha Ishak-Boushaki , Rachel Mandelbaum , Phil Marshall , Jeremy Sakstein , Martin White

Probing Dark Energy with the Kunlun Dark Universe Survey Telescope

Dark energy is an important science driver of many upcoming large-scale surveys. With small, stable seeing and low thermal infrared background, Dome A, Antarctica, offers a unique opportunity for shedding light on fundamental questions…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Gong-Bo Zhao , Hu Zhan , Lifan Wang , Zuhui Fan , Xinmin Zhang