相关论文: DESI Commissioning Instrument Metrology

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…

宇宙学与河外天体物理 · 物理学 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

Dark Energy Survey Year 3 Results: Measurement of the Baryon Acoustic Oscillations with Three-dimensional Clustering

The three-dimensional correlation function offers an effective way to summarize the correlation of the large-scale structure even for imaging galaxy surveys. We have applied the projected three-dimensional correlation function, $\xi_{\rm…

宇宙学与河外天体物理 · 物理学 2022-12-21 K. C. Chan , S. Avila , A. Carnero Rosell , I. Ferrero , J. Elvin-Poole , E. Sanchez , H. Camacho , A. Porredon , M. Crocce , T. M. C. Abbott , M. Aguena , S. Allam , F. Andrade-Oliveira , E. Bertin , S. Bocquet , D. Brooks , D. L. Burke , M. Carrasco Kind , J. Carretero , F. J. Castander , R. Cawthon , C. Conselice , M. Costanzi , M. E. S. Pereira , J. De Vicente , S. Desai , H. T. Diehl , P. Doel , S. Everett , B. Flaugher , P. Fosalba , J. García-Bellido , E. Gaztanaga , D. W. Gerdes , T. Giannantonio , D. Gruen , R. A. Gruendl , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , D. J. James , K. Kuehn , O. Lahav , C. Lidman , M. Lima , J. L. Marshall , J. Mena-Fernández , F. Menanteau , R. Miquel , A. Palmese , F. Paz-Chinchón , A. Pieres , A. A. Plazas Malagón , M. Raveri , M. Rodriguez-Monroy , A. Roodman , A. J. Ross , V. Scarpine , I. Sevilla-Noarbe , M. Smith , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , D. L. Tucker , M. Vincenzi , N. Weaverdyck

The Composite Spectrum of QSO Absorption Line Systems in DESI DR2

We present details regarding the construction of a composite spectrum of quasar (QSO) absorption line systems. In this composite spectrum we identify more than 70 absorption lines, and observe oxygen and hydrogen emission features at a…

星系天体物理 · 物理学 2025-12-03 Lucas Napolitano , Adam D. Myers , Adam Tedeschi , Abhijeet Anand , Hiram K. Herrera-Alcantar , Jessica Aguilar , Steven Ahlen , Stephen Bailey , Segev BenZvi , Davide Bianchi , David Brooks , Todd Claybaugh , Andrei Cuceu , Axel de la Macorra , Arjun Dey , Biprateep Dey , Peter Doel , Andreu Font-Ribera , Jaime E. Forero-Romero , Enrique Gaztanaga , Satya Gontcho A Gontcho , Gaston Gutierrez , Julien Guy , Dick Joyce , Anthony Kremin , Martin Landriau , Laurent Le Guillou , Marc Manera , Aaron Meisner , Ramon Miquel , John Moustakas , Seshadri Nadathur , Nathalie Palanque-Delabrouille , Will Percival , Francisco Prada , Ignasi Perez-Rafols , Graziano Rossi , Eusebio Sanchez , David Schlegel , Michael Schubnell , Joesph Harry Silber , David Sprayberry , Gregory Tarle , Benjamin Alan Weaver , Rongpu Zhou , Hu Zou

DESI Peculiar Velocity Survey -- Fundamental Plane

The Dark Energy Spectroscopic Instrument (DESI) Peculiar Velocity Survey aims to measure the peculiar velocities of early and late type galaxies within the DESI footprint using both the Fundamental Plane and optical Tully-Fisher relations.…

宇宙学与河外天体物理 · 物理学 2025-05-01 Khaled Said , Cullan Howlett , Tamara Davis , John Lucey , Christoph Saulder , Kelly Douglass , Alex G. Kim , Anthony Kremin , Caitlin Ross , Greg Aldering , Jessica Nicole Aguilar , Steven Ahlen , Segev BenZvi , Davide Bianchi , David Brooks , Todd Claybaugh , Kyle Dawson , Axel de la Macorra , Biprateep Dey , Peter Doel , Kevin Fanning , Simone Ferraro , Andreu Font-Ribera , Jaime E. Forero-Romero , Enrique Gaztañaga , Satya Gontcho A Gontcho , Julien Guy , Klaus Honscheid , Robert Kehoe , Theodore Kisner , Andrew Lambert , Martin Landriau , Laurent Le Guillou , Marc Manera , Aaron Meisner , Ramon Miquel , John Moustakas , Andrea Muñoz-Gutiérrez , Adam Myers , Jundan Nie , Nathalie Palanque-Delabrouille , Will Percival , Francisco Prada , Graziano Rossi , Eusebio Sanchez , David Schlegel , Michael Schubnell , Joseph Harry Silber , David Sprayberry , Gregory Tarlé , Mariana Vargas Magana , Benjamin Alan Weaver , Risa Wechsler , Zhimin Zhou , Hu Zou

Overview of the DESI Legacy Imaging Surveys

The DESI Legacy Imaging Surveys are a combination of three public projects (the Dark Energy Camera Legacy Survey, the Beijing-Arizona Sky Survey, and the Mayall z-band Legacy Survey) that will jointly image approximately 14,000 deg^2 of the…

天体物理仪器与方法 · 物理学 2019-04-17 Arjun Dey , David J. Schlegel , Dustin Lang , Robert Blum , Kaylan Burleigh , Xiaohui Fan , Joseph R. Findlay , Doug Finkbeiner , David Herrera , Stephanie Juneau , Martin Landriau , Michael Levi , Ian McGreer , Aaron Meisner , Adam D. Myers , John Moustakas , Peter Nugent , Anna Patej , Edward F. Schlafly , Alistair R. Walker , Francisco Valdes , Benjamin A. Weaver , Christophe Yeche Hu Zou , Xu Zhou , Behzad Abareshi , T. M. C. Abbott , Bela Abolfathi , C. Aguilera , Shadab Alam , Lori Allen , A. Alvarez , James Annis , Behzad Ansarinejad , Marie Aubert , Jacqueline Beechert , Eric F. Bell , Segev Y. BenZvi , Florian Beutler , Richard M. Bielby , Adam S. Bolton , Cesar Briceno Elizabeth J. Buckley-Geer , Karen Butler , Annalisa Calamida , Raymond G. Carlberg , Paul Carter , Ricard Casas , Francisco J. Castander , Yumi Choi , Johan Comparat , Elena Cukanovaite , Timothee Delubac , Kaitlin DeVries , Sharmila Dey , Govinda Dhungana , Mark Dickinson , Zhejie Ding , John B. Donaldson , Yutong Duan , Christopher J. Duckworth , Sarah Eftekharzadeh , Daniel J. Eisenstein , Thomas Etourneau , Parker A. Fagrelius , Jay Farihi , Mike Fitzpatrick , Andreu Font-Ribera , Leah Fulmer , Boris T. Gansicke , Enrique Gaztanaga , Koshy George , David W. Gerdes , Satya Gontcho A Gontcho , Claudio Gorgoni , Gregory Green , Julien Guy , Diane Harmer , M. Hernandez , Klaus Honscheid , Lijuan , Huang , David James , Buell T. Jannuzi , Linhua Jiang , Richard Joyce , Armin Karcher , Sonia Karkar , Robert Kehoe , Jean-Paul Kneib , Andrea Kueter-Young , Ting-Wen Lan , Tod Lauer , Laurent Le Guillou , Auguste Le Van Suu , Jae Hyeon Lee , Michael Lesser , Laurence Perreault Levasseur , Ting S. Li , Justin L. Mann , Bob Marshall , C. E. Martinez-Vazquez , Paul Martini , Helion du Mas des Bourboux , Sean McManus , Tobias Gabriel Meier , Brice Menard , Nigel Metcalfe , Andrea Munoz-Gutierrez , Joan Najita , Kevin Napier , Gautham Narayan , Jeffrey A. Newman , Jundan Nie , Brian Nord , Dara J. Norman , Knut A. G. Olsen , Anthony Paat , Nathalie Palanque-Delabrouille , Xiyan Peng , Claire L. Poppett , Megan R. Poremba , Abhishek Prakash , David Rabinowitz , Anand Raichoor , Mehdi Rezaie , A. N. Robertson , Natalie A. Roe , Ashley J. Ross , Nicholas P. Ross , Gregory Rudnick , Sasha Safonova , Abhijit Saha , F. Javier Sanchez , Elodie Savary , Heidi Schweiker , Adam Scott , Hee-Jong Seo , Huanyuan Shan , David R. Silva , Zachary Slepian , Christian Soto , David Sprayberry , Ryan Staten , Coley M. Stillman , Robert J. Stupak , David L. Summers , Suk Sien Tie , H. Tirado , Mariana Vargas-Magana , A. Katherina Vivas , Risa H. Wechsler , Doug Williams , Jinyi Yang , Qian Yang , Tolga Yapici , Dennis Zaritsky , A. Zenteno , Kai Zhang , Tianmeng Zhang , Rongpu Zhou , Zhimin Zhou

Optimal 1D Ly$\alpha$ Forest Power Spectrum Estimation -- III. DESI early data

The one-dimensional power spectrum $P_{\mathrm{1D}}$ of the Ly$\alpha$ forest provides important information about cosmological and astrophysical parameters, including constraints on warm dark matter models, the sum of the masses of the…

宇宙学与河外天体物理 · 物理学 2025-03-27 Naim Göksel Karaçaylı , Paul Martini , Julien Guy , Corentin Ravoux , Marie Lynn Abdul-Karim , Eric Armengaud , Michael Walther , J. Aguilar , S. Ahlen , S. Bailey , J. Bautista , S. F. Beltran , D. Brooks , L. Cabayol-Garcia , S. Chabanier , E. Chaussidon , J. Chaves-Montero , K. Dawson , R. de la Cruz , A. de la Macorra , P. Doel , A. Font-Ribera , J. E. Forero-Romero , S. Gontcho A Gontcho , A. X. Gonzalez-Morales , C. Gordon , H. K Herrera-Alcantar , K. Honscheid , V. Iršič , M. Ishak , R. Kehoe , T. Kisner , A. Kremin , M. Landriau , L. Le Guillou , M. E. Levi , Z. Lukić , A. Meisner , R. Miquel , J. Moustakas , E. Mueller , A. Muñoz-Gutiérrez , L. Napolitano , J. Nie , G. Niz , N. Palanque-Delabrouille , W. J. Percival , M. Pieri , C. Poppett , F. Prada , I. Pérez-Ràfols , C. Ramírez-Pérez , G. Rossi , E. Sanchez , H. Seo , F. Sinigaglia , T. Tan , G. Tarlé , B. Wang , B. A. Weaver , C. Yèche , Z. Zhou

Science Objectives and Early Results of the DEEP2 Redshift Survey

The DEIMOS spectrograph has now been installed on the Keck-II telescope and commissioning is nearly complete. The DEEP2 Redshift Survey, which will take approximately 120 nights at the Keck Observatory over a three year period and has been…

天体物理学 · 物理学 2010-11-04 Marc Davis , Sandra M. Faber , Jeffrey A. Newman , Andrew C. Phillips , R. S. Ellis , C. C. Steidel , C. Conselice , A. L. Coil , D. P. Finkbeiner , D. C. Koo , P. Guhathakurta , B. Weiner , R. Schiavon , C Willmer , N. Kaiser , G. Luppino , G. Wirth , A. Connolly , P. Eisenhardt , M. Cooper , B. Gerke

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,…

天体物理仪器与方法 · 物理学 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

Probing Dark Energy Evolution Post-DESI 2024

We study the evidence for dark energy (DE) evolution at low redshift, using baryonic acoustic oscillations (BAOs) from the DESI Early Data Release, Pantheon+ Type Ia supernovae (SNe-Ia), and redshift space distortions (RSDs) to constrain…

宇宙学与河外天体物理 · 物理学 2024-09-30 Lili Orchard , Víctor H. Cárdenas

Validation of the DESI DR2 Measurements of Baryon Acoustic Oscillations from Galaxies and Quasars

The Dark Energy Spectroscopic Instrument (DESI) data release 2 (DR2) galaxy and quasar clustering data represents a significant expansion of data from DR1, providing improved statistical precision in BAO constraints across multiple tracers,…

宇宙学与河外天体物理 · 物理学 2025-03-31 U. Andrade , E. Paillas , J. Mena-Fernández , Q. Li , A. J. Ross , S. Nadathur , M. Rashkovetskyi , A. Pérez-Fernández , H. Seo , N. Sanders , O. Alves , X. Chen , N. Deiosso , A. de Mattia , M. White , M. Abdul-Karim , S. Ahlen , E. Armengaud , A. Aviles , D. Bianchi , S. Brieden , A. Brodzeller , D. Brooks , E. Burtin , R. Calderon , R. Canning , A. Carnero Rosell , L. Casas , F. J. Castander , M. Charles , E. Chaussidon , J. Chaves-Montero , T. Claybaugh , S. Cole , A. Cuceu , K. S. Dawson , A. de la Macorra , J. Della Costa , A. Dey , B. Dey , Z. Ding , P. Doel , D. J. Eisenstein , W. Elbers , E. Fernández-García , S. Ferraro , A. Font-Ribera , J. E. Forero-Romero , C. Garcia-Quintero , L. H. Garrison , E. Gaztañaga , H. Gil-Marín , S. Gontcho A Gontcho , A. X. Gonzalez-Morales , C. Gordon , G. Gutierrez , J. Guy , C. Hahn , S. He , H. K. Herrera-Alcantar , K. Honscheid , C. Howlett , D. Huterer , M. Ishak , S. Juneau , R. Kehoe , D. Kirkby , T. Kisner , A. Kremin , O. Lahav , C. Lamman , M. Landriau , L. Le Guillou , A. Leauthaud , M. E. Levi , C. Magneville , M. Manera , P. Martini , W. Matthewson , A. Meisner , R. Miquel , J. Moustakas , A. Muñoz-Gutiérrez , D. Muñoz-Santos , A. D. Myers , L. Napolitano , J. A. Newman , H. E. Noriega , N. Palanque-Delabrouille , J. Pan , W. J. Percival , I. Pérez-Ràfols , C. Poppett , F. Prada , A. Raichoor , C. Ramírez-Pérez , C. Ravoux , G. Rossi , R. Ruggeri , L. Samushia , E. Sanchez , D. Schlegel , M. Schubnell , F. Sinigaglia , D. Sprayberry , T. Tan , G. Tarlé , P. Taylor , W. Turner , R. Vaisakh , M. Vargas-Magaña , M. Walther , B. A. Weaver , M. Wolfson , J. Yu , C. Yèche , P. Zarrouk , R. Zhou , H. Zou

Cosmology in Extended Parameter Space with DESI Data Release 2 Baryon Acoustic Oscillations: A 2$\sigma$+ Detection of Nonzero Neutrino Masses with an Update on Dynamical Dark Energy and Lensing Anomaly

We obtain constraints in a 12 parameter cosmological model using the recent Dark Energy Spectroscopic Instrument Data Release (DR) 2 Baryon Acoustic Oscillations (BAO) data, combined with cosmic microwave background (CMB) power spectra…

宇宙学与河外天体物理 · 物理学 2026-03-25 Shouvik Roy Choudhury

Constraining the Expansion History and Early Dark Energy with Line Intensity Mapping

We consider the potential for line intensity mapping (IM) experiments to measure the baryon acoustic oscillations (BAO) from 3 < z < 6. This would constrain the expansion history in a redshift range that is currently unexplored. We…

宇宙学与河外天体物理 · 物理学 2018-09-03 Kirit S. Karkare , Simeon Bird

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…

天体物理仪器与方法 · 物理学 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

Facilities for Dark Energy Investigations

The discovery of cosmic acceleration has inspired ambitious experimental and observational efforts to understand its origin. Many of these take the form of large astronomical surveys, sometimes using new, special-purpose instrumentation,…

宇宙学与河外天体物理 · 物理学 2013-09-24 David Weinberg , Deborah Bard , Kyle Dawson , Olivier Dore , Joshua Frieman , Karl Gebhardt , Michael Levi , Jason Rhodes

Cosmological Preference for a Positive Neutrino Mass at 2.7$\sigma$: A Joint Analysis of DESI DR2, DESY5, and DESY1 Data

Neutrinos and dark energy (DE) have entered a new era of investigation, as the latest DESI baryon acoustic oscillation measurements tighten the constraints on the neutrino mass and suggest that DE may be dynamical rather than a cosmological…

宇宙学与河外天体物理 · 物理学 2025-10-31 Guo-Hong Du , Tian-Nuo Li , Peng-Ju Wu , Jing-Fei Zhang , Xin Zhang

Revisiting cosmic acceleration with DESI BAO

We revisit the evolution of cosmic acceleration in a spatially flat $w_0w_a$CDM universe, in which the equation of state of dark energy takes the CPL parametrization, using the latest baryon acoustic oscillation (BAO) measurements from the…

宇宙学与河外天体物理 · 物理学 2025-08-12 Jincheng Wang , Hongwei Yu , Puxun Wu

The Dark Energy Camera All Data Everywhere cosmic shear project V: Constraints on cosmology and astrophysics from 270 million galaxies across 13,000 deg$^2$ of the sky

We present constraints on models of cosmology and astrophysics using cosmic shear data vectors from three datasets: the northern and southern Galactic cap of the Dark Energy Camera All Data Everywhere (DECADE) project, and the Dark Energy…

宇宙学与河外天体物理 · 物理学 2025-11-18 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. J. Shajib , J. A. Frieman , 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 , B. Jain , 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 , S. Pandey , 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 , E. J. Tollerud , A. Tong , M. A. Troxel , A. K. Vivas , M. Yamamoto , B. Yanny , B. Yin , A. Zenteno , Y. Zhang , J. Zuntz

Prospects for cosmological research using hundred-meter-class radio telescopes: 21-cm intensity mapping survey strategies with QTT, JRT, and HRT

Understanding dark energy requires precision measurements of the expansion history of the universe and the growth of large-scale structure. The 21 cm intensity mapping (21 cm IM) technique enables rapid large-area surveys that can deliver…

宇宙学与河外天体物理 · 物理学 2025-11-25 Jun-Da Pan , Yichao Li , Guo-Hong Du , Tian-Nuo Li , Xin Zhang

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…

天体物理仪器与方法 · 物理学 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

DESI Strong Lens Foundry I: HST Observations and Modeling with GIGA-Lens

We present the Dark Energy Spectroscopic Instrument (DESI) Strong Lens Foundry. We discovered $\sim 3500$ new strong gravitational lens candidates in the DESI Legacy Imaging Surveys using residual neural networks (ResNet). We observed a…

宇宙学与河外天体物理 · 物理学 2025-02-07 X. Huang , S. Baltasar , N. Ratier-Werbin , C. Storfer , W. Sheu , S. Agarwal , M. Tamargo-Arizmendi , D. J. Schlegel , J. Aguilar , S. Ahlen , G. Aldering , S. Banka , S. BenZvi , D. Bianchi , A. Bolton , D. Brooks , A. Cikota , T. Claybaugh , A. de la Macorra , A. Dey , P. Doel , J. Edelstein , A. Filipp , J. E. Forero-Romero , E. Gaztanaga , S. Gontcho A Gontcho , A. Gu , G. Gutierrez , K. Honscheid , E. Jullo , S. Juneau , R. Kehoe , D. Kirkby , T. Kisner , A. Kremin , K. J. Kwon , A. Lambert , M. Landriau , D. Lang , L. Le Guillou , J. Liu , A. Meisner , R. Miquel , J. Moustakas , A. D. Myers , S. Perlmutter , I. Perez-Rafols , F. Prada , G. Rossi , D. Rubin , E. Sanchez , M. Schubnell , Y. Shu , E. Silver , D. Sprayberry , N. Suzuki , G. Tarle , B. A. Weaver , H. Zou