Related papers: Photometric characterization of the Dark Energy Ca…

Astrometric calibration and performance of the Dark Energy Camera

We characterize the ability of the Dark Energy Camera (DECam) to perform relative astrometry across its 500~Mpix, 3 deg^2 science field of view, and across 4 years of operation. This is done using internal comparisons of ~4x10^7…

Instrumentation and Methods for Astrophysics · Physics 2017-06-14 G. M. Bernstein , R. Armstrong , A. A. Plazas , A. R. Walker , T. M. C. Abbott , S. Allam , K. Bechtol , A. Benoit-Lévy , D. Brooks , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , C. E. Cunha , L. N. da Costa , D. L. DePoy , S. Desai , H. T. Diehl , T. F. Eifler , E. Fernandez , P. Fosalba , J. Frieman , J. García-Bellido , D. W. Gerdes , D. Gruen , R. A. Gruendl , J. Gschwend , G. Gutierrez , K. Honscheid , D. J. James , S. Kent , E. Krause , K. Kuehn , N. Kuropatkin , T. S. Li , M. A. G. Maia , M. March , J. L. Marshall , F. Menanteau , R. Miquel , R. L. C. Ogando , K. Reil , A. Roodman , E. S. Rykoff , E. Sanchez , V. Scarpine , R. Schindler , M. Schubnell , I. Sevilla-Noarbe , M. Smith , R. C. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle

Instrumental response model and detrending for the Dark Energy Camera

We describe the model for the mapping from sky brightness to the digital output of the Dark Energy Camera, and the algorithms adopted by the Dark Energy Survey (DES) for inverting this model to obtain photometric measures of celestial…

Instrumentation and Methods for Astrophysics · Physics 2017-09-20 G. M. Bernstein , T. M. C. Abbott , S. Desai , D. Gruen , R. A. Gruendl , M. D. Johnson , H. Lin , F. Menanteau , E. Morganson , E. Neilsen , K. Paech , A. R. Walker , W. Wester , B. Yanny

Forward Global Photometric Calibration of the Dark Energy Survey

Many scientific goals for the Dark Energy Survey (DES) require calibration of optical/NIR broadband $b = grizY$ photometry that is stable in time and uniform over the celestial sky to one percent or better. It is also necessary to limit to…

Instrumentation and Methods for Astrophysics · Physics 2018-01-10 D. Burke , E. S. Rykoff , S. Allam , J. Annis , K. Bechtol , G. M. Bernstein , A. Drlica-Wagner , D. A. Finley , R. A. Gruendl , D. J. James , S. Kent , R. Kessler , S. Kuhlmann , J. Lasker , T. S. Li , D. Scolnic , J. Allyn Smith , D. L. Tucker , W. Wester , B. Yanny , T. M. C. Abbot , F. B. Abdalla , A. Benoit-Levy , E. Bertin , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , S. Desai , H. T. Diehl , P. Doel , J. Estrada , J. Garcia-Bellido , D. Gruen , G. Gutierrez , K. Honscheid , K. Kuehn , N. Kuropatkin , M. A. G. Maia , M. March , J. L. Marshall , P. Melchior , F. Menanteau , R. Miquel , A. A. Plazas , M. Sako , E. Sanchez , V. Scarpine , R. Schindler , I. Sevilla-Noarbe , M. Smith , R. C. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , G. Tarle , A. R. Walker

Assessment of Systematic Chromatic Errors that Impact Sub-1% Photometric Precision in Large-Area Sky Surveys

Meeting the science goals for many current and future ground-based optical large-area sky surveys requires that the calibrated broadband photometry is stable in time and uniform over the sky to 1% precision or better. Past surveys have…

Instrumentation and Methods for Astrophysics · Physics 2016-06-08 T. S. Li , D. L. DePoy , J. L. Marshall , D. Tucker , R. Kessler , J. Annis , G. M. Bernstein , S. Boada , D. L. Burke , D. A. Finley , D. J. James , S. Kent , H. Lin , J. Marriner , N. Mondrik , D. Nagasawa , E. S. Rykoff , D. Scolnic , A. R. Walker , W. Wester , T. M. C. Abbott , S. Allam , A. Benoit-Lévy , E. Bertin , D. Brooks , D. Capozzi , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , M. Crocce , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , S. Desai , H. T. Diehl , P. Doel , B. Flaugher , P. Fosalba , J. Frieman , E. Gaztanaga , D. A. Goldstein , D. Gruen , R. A. Gruendl , G. Gutierrez , K. Honscheid , K. Kuehn , N. Kuropatkin , M. A. G. Maia , P. Melchior28 , C. J. Miller , R. Miquel , J. J. Mohr , E. Neilsen , R. C. Nichol , B. Nord , R. Ogando , A. A. Plazas , A. K. Romer , A. Roodman , M. Sako , E. Sanchez , V. Scarpine , M. Schubnell , I. Sevilla-Noarbe , R. C. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , G. Tarle , D. Thomas , V. Vikram , The DES Collaboration

New variable sources revealed by DECam toward the LMC: the first 15 deg2

The Dark Energy Camera (DECam) is a sensitive, wide field instrument mounted at the prime focus of the 4 m V. Blanco Telescope in Chile. Beside its main objectives, i.e. understanding the growth and evolution of structures in the Universe,…

Solar and Stellar Astrophysics · Physics 2023-04-18 A. Franco , A. A. Nucita , F. De Paolis , F. Strafella , S. Sacquegna

Photometric Calibration of the DES

The Dark Energy Survey (DES) is a 5000 sq deg griz imaging survey to be conducted using a proposed 3 sq deg (2.2deg-diameter) wide-field mosaic camera on the CTIO Blanco 4m telescope. The primary scientific goal of the DES is to constrain…

Astrophysics · Physics 2019-08-14 Douglas L. Tucker , James T. Annis , Huan Lin , Stephen Kent , Chris Stoughton , John Peoples , Sahar Allam , Joseph J. Mohr , Wayne A. Barkhouse , Choong Ngeow , Tanweer Alam , Cristina Beldica , Dora Cai , Greg Daues , Ray Plante , Chris Miller , Chris Smith , Nicholas B. Suntzeff

The DECADE cosmic shear project II: photometric redshift calibration of the source galaxy sample

We present the photometric redshift characterization and calibration for the Dark Energy Camera All Data Everywhere (DECADE) weak lensing dataset: a catalog of 107 million galaxies observed by the Dark Energy Camera (DECam) in the northern…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-24 D. Anbajagane , A. Alarcon , R. Teixeira , C. Chang , L. F. Secco , C. Y. Tan , A. Drlica-Wagner , M. Adamow , R. A. Gruendl , G. Giannini , M. R. Becker , P. S. Ferguson , N. Chicoine , Z. Zhang , K. Herron , D. Suson , A. N. Alsina , A. Amon , C. R. Bom , J. A. Carballo-Bello , W. Cerny , A. Choi , Y. Choi , C. Doux , K. Eckert , M. Gatti , D. Gruen , W. G. Hartley , K. Herner , E. M. Huff , D. J. James , N. Kuropatkin , C. E. Martínez-Vázquez , P. Massana , S. Mau , J. McCullough , G. E. Medina , B. Mutlu-Pakdil , J. Myles , M. Navabi , N. E. D. Noël , A. B. Pace , M. Raveri , A. H. Riley , J. D. Sakowska , D. Sanchez-Cid , D. J. Sand , L. Santana-Silva , I. Sevilla-Noarbe , M. Soares-Santos , G. S. Stringfellow , A. K. Vivas , M. Yamamoto

The DECADE cosmic shear project IV: cosmological constraints from 107 million galaxies across 5,400 deg$^2$ of the sky

We present cosmological constraints from the Dark Energy Camera All Data Everywhere (DECADE) cosmic shear analysis. This work uses shape measurements for 107 million galaxies measured through Dark Energy Camera (DECam) imaging of $5,\!412$…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-24 D. Anbajagane , C. Chang , A. Drlica-Wagner , C. Y. Tan , M. Adamow , R. A. Gruendl , L. F. Secco , Z. Zhang , M. R. Becker , P. S. Ferguson , N. Chicoine , K. Herron , A. Alarcon , R. Teixeira , D. Suson , A. N. Alsina , A. Amon , F. Andrade-Oliveira , J. Blazek , C. R. Bom , H. Camacho , J. A. Carballo-Bello , A. Carnero Rosell , R. Cawthon , W. Cerny , A. Choi , Y. Choi , S. Dodelson , C. Doux , K. Eckert , J. Elvin-Poole , J. Esteves , M. Gatti , G. Giannini , D. Gruen , W. G. Hartley , K. Herner , E. M. Huff , D. J. James , M. Jarvis , E. Krause , N. Kuropatkin , C. E. Martínez-Vázquez , P. Massana , S. Mau , J. McCullough , G. E. Medina , B. Mutlu-Pakdil , J. Myles , M. Navabi , N. E. D. Noël , A. B. Pace , A. Porredon , J. Prat , M. Raveri , A. H. Riley , E. S. Rykoff , J. D. Sakowska , S. Samuroff , D. Sanchez-Cid , D. J. Sand , L. Santana-Silva , I. Sevilla-Noarbe , T. Shin , M. Soares-Santos , G. S. Stringfellow , C. To , A. Tong , M. A. Troxel , A. K. Vivas , M. Yamamoto , B. Yanny , B. Yin , Y. Zhang , J. Zuntz

Photometric redshift analysis in the Dark Energy Survey Science Verification data

We present results from a study of the photometric redshift performance of the Dark Energy Survey (DES), using the early data from a Science Verification (SV) period of observations in late 2012 and early 2013 that provided science-quality…

Instrumentation and Methods for Astrophysics · Physics 2014-10-15 C. Sánchez , M. Carrasco Kind , H. Lin , R. Miquel , F. B. Abdalla , A. Amara , M. Banerji , C. Bonnett , R. Brunner , D. Capozzi , A. Carnero , F. J. Castander , L. A. N. da Costa , C. Cunha , A. Fausti , D. Gerdes , N. Greisel , J. Gschwend , W. Hartley , S. Jouvel , O. Lahav , M. Lima , M. A. G. Maia , P. Martí , R. L. C. Ogando , F. Ostrovski , P. Pellegrini , M. M. Rau , I. Sadeh , S. Seitz , I. Sevilla-Noarbe , A. Sypniewski , J. de Vicente , T. Abbot , S. S. Allam , D. Atlee , G. Bernstein , J. P. Bernstein , E. Buckley-Geer , D. Burke , M. J. Childress , T. Davis , D. L. DePoy , A. Dey , S. Desai , H. T. Diehl , P. Doel , J. Estrada , A. Evrard , E. Fernández , D. Finley , B. Flaugher , E. Gaztanaga , K. Glazebrook , K. Honscheid , A. Kim , K. Kuehn , N. Kuropatkin , C. Lidman , M. Makler , J. L. Marshall , R. C. Nichol , A. Roodman , E. Sánchez , B. X. Santiago , M. Sako , R. Scalzo , R. C. Smith , M. E. C. Swanson , G. Tarle , D. Thomas , D. L. Tucker , S. A. Uddin , F. Valdés , A. Walker , F. Yuan , J. Zuntz

On-sky measurements of the transverse electric fields' effects in the Dark Energy Camera CCDs

Photo-generated charge in thick, back-illuminated, fully-depleted CCDs is transported by electric fields from the silicon substrate to the collecting well at the front gate of the CCDs. However, electric fields transverse to the surface of…

Instrumentation and Methods for Astrophysics · Physics 2017-04-06 Andrés A. Plazas , Gary M. Bernstein , Erin S. Sheldon

The Dark Energy Survey Data Processing and Calibration System

The Dark Energy Survey (DES) is a 5000 deg2 grizY survey reaching characteristic photometric depths of 24th magnitude (10 sigma) and enabling accurate photometry and morphology of objects ten times fainter than in SDSS. Preparations for DES…

Instrumentation and Methods for Astrophysics · Physics 2015-06-05 Joseph J. Mohr , Robert Armstrong , Emmanuel Bertin , Gregory E. Daues , Shantanu Desai , Michelle Gower , Robert Gruendl , William Hanlon , Nikolay Kuropatkin , Huan Lin , John Marriner , Don Petravick , Ignacio Sevilla , Molly Swanson , Todd Tomashek , Douglas Tucker , Brian Yanny , the Dark Energy Survey Collaboration

Measuring the flatness of focal plane for very large mosaic CCD camera

Large mosaic multiCCD camera is the key instrument for modern digital sky survey. DECam is an extremely red sensitive 520 Megapixel camera designed for the incoming Dark Energy Survey (DES). It is consist of sixty two 4k$\times$2k and…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Jiangang Hao , Juan Estrada , Herman Cease , H. Thomas Diehl , Brenna L. Flaugher , Donna Kubik , Keivin Kuk , Nickolai Kuropatkine , Huan Lin , Jorge Montes , Vic Scarpine , Ken Schultz , William Wester

DECal: A Spectrophotometric Calibration System For DECam

DECal is a new calibration system for the CTIO 4 m Blanco telescope. It is currently being installed as part of the Dark Energy Survey and will provide both broadband flat fields and narrowband (about 1 nm bandwidth) spectrophotometric…

Instrumentation and Methods for Astrophysics · Physics 2013-02-26 J. L. Marshall , Jean-Philippe Rheault , D. L. DePoy , Travis Prochaska , Richard Allen , Tyler W. Behm , Emily C. Martin , Brannon Veal , Steven Villanueva, , Patrick Williams , Jason Wise

The DES Science Verification Weak Lensing Shear Catalogues

We present weak lensing shear catalogues for 139 square degrees of data taken during the Science Verification (SV) time for the new Dark Energy Camera (DECam) being used for the Dark Energy Survey (DES). We describe our object selection,…

Instrumentation and Methods for Astrophysics · Physics 2016-05-25 M. Jarvis , E. Sheldon , J. Zuntz , T. Kacprzak , S. L. Bridle , A. Amara , R. Armstrong , M. R. Becker , G. M. Bernstein , C. Bonnett , C. Chang , R. Das , J. P. Dietrich , A. Drlica-Wagner , T. F. Eifler , C. Gangkofner , D. Gruen , M. Hirsch , E. M. Huff , B. Jain , S. Kent , D. Kirk , N. MacCrann , P. Melchior , A. A. Plazas , A. Refregier , B. Rowe , E. S. Rykoff , S. Samuroff , C. Sánchez , E. Suchyta , M. A. Troxel , V. Vikram , T. Abbott , F. B. Abdalla , S. Allam , J. Annis , A. Benoit-Lévy , E. Bertin , D. Brooks , E. Buckley-Geer , D. L. Burke , D. Capozzi , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , J. Clampitt , M. Crocce , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , D. L. DePoy , S. Desai , H. T. Diehl , P. Doel , A. Fausti Neto , B. Flaugher , P. Fosalba , J. Frieman , E. Gaztanaga , D. W. Gerdes , R. A. Gruendl , G. Gutierrez , K. Honscheid , D. J. James , K. Kuehn , N. Kuropatkin , O. Lahav , T. S. Li , M. Lima , M. March , P. Martini , R. Miquel , J. J. Mohr , E. Neilsen , B. Nord , R. Ogando , K. Reil , A. K. Romer , A. Roodman , M. Sako , E. Sanchez , V. Scarpine , M. Schubnell , I. Sevilla-Noarbe , R. C. Smith , M. Soares-Santos , F. Sobreira , M. E. C. Swanson , G. Tarle , J. Thaler , D. Thomas , A. R. Walker , R. H. Wechsler

The ensemble photometric variability of over $10^5$ quasars in the Dark Energy Camera Legacy Survey and the Sloan Digital Sky Survey

We present the ensemble variability analysis results of quasars using the Dark Energy Camera Legacy Survey (DECaLS) and the Sloan Digital Sky Survey (SDSS) quasar catalogs. Our dataset includes 119,305 quasars with redshifts up to 4.89.…

Astrophysics of Galaxies · Physics 2018-07-11 Zefeng Li , Ian D. McGreer , Xue-Bing Wu , Xiaohui Fan , Qian Yang

The Dark Energy Survey Supernova Program: Corrections on photometry due to wavelength-dependent atmospheric effects

Wavelength-dependent atmospheric effects impact photometric supernova flux measurements for ground-based observations. We present corrections on supernova flux measurements from the Dark Energy Survey Supernova Program's 5YR sample…

Cosmology and Nongalactic Astrophysics · Physics 2023-05-10 J. Lee , M. Acevedo , M. Sako , M. Vincenzi , D. Brout , B. Sanchez , R. Chen , T. M. Davis , M. Jarvis , D. Scolnic , H. Qu , L. Galbany , R. Kessler , J. Lasker , M. Sullivan , P. Wiseman , M. Aguena , S. Allam , O. Alves , F. Andrade-Oliveira , E. Bertin , S. Bocquet , D. Brooks , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , M. Costanzi , L. N. da Costa , M. E. S. Pereira , J. De Vicente , S. Desai , H. T. Diehl , P. Doel , S. Everett , I. Ferrero , D. Friedel , J. Frieman , J. García-Bellido , D. W. Gerdes , D. Gruen , R. A. Gruendl , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. J. James , S. Kent , K. Kuehn , N. Kuropatkin , J. Mena-Fernández , R. Miquel , R. L. C. Ogando , A. Palmese , A. Pieres , A. A. Plazas Malagón , M. Raveri , K. Reil , M. Rodriguez-Monroy , E. Sanchez , V. Scarpine , I. Sevilla-Noarbe , M. Smith , E. Suchyta , G. Tarle , C. To , N. Weaverdyck

The Dark Energy Camera Plane Survey 2 (DECaPS2): More Sky, Less Bias, and Better Uncertainties

Deep optical and near-infrared imaging of the entire Galactic plane is essential for understanding our Galaxy's stars, gas, and dust. The second data release of the DECam Plane Survey (DECaPS2) extends the five-band optical and…

Astrophysics of Galaxies · Physics 2023-02-01 A. K. Saydjari , E. F. Schlafly , D. Lang , A. M. Meisner , G. M. Green , C. Zucker , I. Zelko , J. S. Speagle , T. Daylan , A. Lee , F. Valdes , D. Schlegel , D. P. Finkbeiner

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

The Dark Energy Survey Six-Year Calibration Star Catalog

This Technical Note presents a catalog of calibrated reference stars that was generated by the Forward Calibration Method (FGCM) pipeline (arXiv:1706.01542) as part of the FGCM photometric calibration of the full Dark Energy Survey (DES)…

Instrumentation and Methods for Astrophysics · Physics 2023-05-04 E. S. Rykoff , D. L. Tucker , D. L. Burke , S. S. Allam , K. Bechtol , G. M. Bernstein , D. Brout , R. A. Gruendl , J. Lasker , J. A. Smith , W. C. Wester , B. Yanny , T. M. C. Abbott , M. Aguena , O. Alves , F. Andrade-Oliveira , J. Annis , D. Bacon , E. Bertin , D. Brooks , A. Carnero Rosell , J. Carretero , F. J. Castander , A. Choi , L. N. da Costa , M. E. S. Pereira , T. M. Davis , J. De Vicente , H. T. Diehl , P. Doel , A. Drlica-Wagner , S. Everett , I. Ferrero , J. Frieman , J. García-Bellido , G. Giannini , D. Gruen , G. Gutierrez , S. R. Hinton , D. L. Hollowood , D. J. James , K. Kuehn , O. Lahav , J. L. Marshall , J. Mena-Fernández , F. Menanteau , J. Myles , B. D. Nord , R. L. C. Ogando , A. Palmese , A. Pieres , A. A. Plazas Malagón , M. Raveri , M. Rodgríguez-Monroy , E. Sanchez , B. Santiago , M. Schubnell , I. Sevilla-Noarbe , M. Smith , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , T. N. Varga , M. Vincenzi , A. R. Walker , N. Weaverdyck , P. Wiseman

The DECam Plane Survey: Optical photometry of two billion objects in the southern Galactic plane

The DECam Plane Survey is a five-band optical and near-infrared survey of the southern Galactic plane with the Dark Energy Camera at Cerro Tololo. The survey is designed to reach past the main-sequence turn-off at the distance of the…

Astrophysics of Galaxies · Physics 2018-02-21 E. F. Schlafly , G. M. Green , D. Lang , T. Daylan , D. P. Finkbeiner , A. Lee , A. M. Meisner , D. Schlegel , F. Valdes