相关论文: Testing the 10 spectrograph units for DESI: approa…

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 DESI Survey Validation: Results from Visual Inspection of the Quasar Survey Spectra

A key component of the Dark Energy Spectroscopic Instrument (DESI) survey validation (SV) is a detailed visual inspection (VI) of the optical spectroscopic data to quantify key survey metrics. In this paper we present results from VI of the…

星系天体物理 · 物理学 2023-03-01 David M. Alexander , Tamara M. Davis , E. Chaussidon , V. A. Fawcett , Alma X. Gonzalez-Morales , Ting-Wen Lan , Christophe Yeche , S. Ahlen , J. N. Aguilar , E. Armengaud , S. Bailey , D. Brooks , Z. Cai , R. Canning , A. Carr , S. Chabanier , Marie-Claude Cousinou , K. Dawson , A. de la Macorra , A. Dey , Biprateep Dey , G. Dhungana , A. C. Edge , S. Eftekharzadeh , K. Fanning , James Farr , A. Font-Ribera , J. Garcia-Bellido , Lehman Garrison , E. Gaztanaga , Satya Gontcho A Gontcho , C. Gordon , Stefany Guadalupe Medellin Gonzalez , J. Guy , Hiram K. Herrera-Alcantar , L. Jiang , S. Juneau , Naim Karacayli , R. Kehoe , T. Kisner , A. Kovacs , M. Landriau , Michael E. Levi , C. Magneville , P. Martini , Aaron M. Meisner , M. Mezcua , R. Miquel , P. Montero Camacho , J. Moustakas , Andrea Munoz-Gutierrez , Adam D. Myers , S. Nadathur , L. Napolitano , J. D. Nie , N. Palanque-Delabrouille , Z. Pan , W. J. Percival , I. Perez-Rafols , C. Poppett , F. Prada , Cesar Ramirez-Perez , C. Ravoux , D. J. Rosario , M. Schubnell , Gregory Tarle , M. Walther , B. Weiner , S. Youles , Zhimin Zhou , H. Zou , Siwei 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

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

Baryon acoustic oscillations from a joint analysis of the large-scale clustering in Fourier and configuration space

Baryon acoustic oscillations (BAOs) are a powerful probe of the expansion history of our Universe and are typically measured in the two-point statistics of a galaxy survey, either in Fourier space or in configuration space. In this work, we…

宇宙学与河外天体物理 · 物理学 2022-11-16 Tyann Dumerchat , Julian E. Bautista

Dark Energy Survey Year 6 Results: Galaxy-galaxy lensing

We present galaxy--galaxy lensing (GGL) measurements from the full six years of data from the Dark Energy Survey (DES Y6), covering $4031\,\mathrm{deg}^2$ and used in the DES Y6 $3\times2$pt cosmological analysis. We use the MagLim++ lens…

宇宙学与河外天体物理 · 物理学 2026-01-22 G. Giannini , G. Camacho-Ciurana , A. Whyley , J. Prat , J. Blazek , C. Sánchez , G. Zacharegkas , A. Alarcon , E. Legnani , A. Amon , D. Anbajagane , S. Avila , K. Bechtol , M. R. Becker , G. M. Bernstein , S. Bocquet , A. Campos , A. Carnero Rosell , R. Cawthon , C. Chang , M. Crocce , W. d'Assignies , J. De Vicente , A. Drlica-Wagner , S. Elvin-Poole , A. Ferté , M. Gatti , D. Gruen , M. Jarvis , M. Manera , S. Mau , J. McCullough , F. Menanteau , J. Myles , A. Porredon , M. Rodriguez-Monroy , A. Roodman , E. S. Rykoff , S. Samuroff , D. Sanchez Cid , I. Sevilla-Noarbe , T. Schutt , M. A. Troxel , N. Weaverdyck , M. Yamamoto , B. Yin , T. M. C. Abbott , M. Aguena , S. Allam , O. Alves , F. Andrade-Oliveira , D. Bacon , E. Bertin , D. Brooks , H. Camacho , J. Carretero , L. N. da Costa , M. E. da Silva Pereira , T. M. Davis , D. L. DePoy , S. Desai , H. T. Diehl , P. Doel , C. Doux , T. F. Eifler , S. Everett , A. E. Evrard , P. Fosalba , J. Frieman , J. García-Bellido , E. Gaztanaga , P. Giles , K. Glazebrook , I. Harrison , W. G. Hartley , K. Herner , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , B. Jain , D. J. James , N. Jeffrey , T. Kacprzak , S. Kent , E. Krause , O. Lahav , S. Lee , J. L. Marshall , J. Mena-Fernández , R. Miquel , J. J. Mohr , J. Muir , R. C. Nichol , R. L. C. Ogando , A. Palmese , M. Paterno , W. J. Percival , D. Petravick , A. A. Plazas Malagón , M. Raveri , R. Rosenfeld , E. Sanchez , E. Sheldon , T. Shin , J. Allyn. Smith , M. Smith , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , C. To , D. L. Tucker , V. Vikram , M. Vincenzi , A. R. Walker , P. Wiseman , B. Yanny

The DES Bright Arcs Survey: Candidate Strongly Lensed Galaxy Systems from the Dark Energy Survey 5,000 Sq. Deg. Footprint

We report the combined results of eight searches for strong gravitational lens systems in the full 5,000 sq. deg. of Dark Energy Survey (DES) observations. The observations accumulated by the end of the third observing season fully covered…

宇宙学与河外天体物理 · 物理学 2022-03-14 J. H. O'Donnell , R. D. Wilkinson , H. T. Diehl , C. Aros-Bunster , K. Bechtol , S. Birrer , E. J. Buckley-Geer , A. Carnero Rosell , M. Carrasco Kind , L. N. da Costa , S. J. Gonzalez Lozano , R. A. Gruendl , M. Hilton , H. Lin , K. A. Lindgren , J. Martin , A. Pieres , E. S. Rykoff , I. Sevilla-Noarbe , E. Sheldon , C. Sifón , D. L. Tucker , B. Yanny , T. M. C. Abbott , M. Aguena , S. Allam , F. Andrade-Oliveira , J. Annis , E. Bertin , D. Brooks , D. L. Burke , J. Carretero , M. Costanzi , J. De Vicente , S. Desai , J. P. Dietrich , K. Eckert , S. Everett , I. Ferrero , B. Flaugher , P. Fosalba , J. Frieman , J. García-Bellido , E. Gaztanaga , D. W. Gerdes , D. Gruen , J. Gschwend , M. S. S. Gill , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. J. James , T. Jeltema , K. Kuehn , O. Lahav , M. Lima , M. A. G. Maia , J. L. Marshall , P. Melchior , F. Menanteau , R. Miquel , R. Morgan , B. Nord , R. L. C. Ogando , F. Paz-Chinchón , M. E. S. Pereira , A. A. Plazas Malagón , M. Rodriguez-Monroy , A. K. Romer , A. Roodman , E. Sanchez , V. Scarpine , M. Schubnell , S. Serrano , M. Smith , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , C. To , T. N. Varga

Snowmass2021 Cosmic Frontier White Paper: High Density Galaxy Clustering in the Regime of Cosmic Acceleration

Joint studies of imaging and spectroscopic samples, informed by theory and simulations, offer the potential for comprehensive tests of the cosmological model over redshifts z<1.5. Spectroscopic galaxy samples at these redshifts can be…

宇宙学与河外天体物理 · 物理学 2022-03-15 Kyle Dawson , Andrew Hearin , Katrin Heitmann , Mustapha Ishak , Johannes Ulf Lange , Martin White , Rongpu Zhou

Outliers in DESI BAO: robustness and cosmological implications

We apply an Internal Robustness (iR) analysis to the recently released Dark Energy Spectroscopic Instrument (DESI) baryon acoustic oscillations dataset. This approach examines combinations of data subsets through a fully Bayesian model…

宇宙学与河外天体物理 · 物理学 2024-12-03 Domenico Sapone , Savvas Nesseris

Measuring Baryon Acoustic Oscillations along the line of sight with photometric redshifs: the PAU survey

Baryon Acoustic Oscillations (BAO) provide a standard ruler of known physical length, making it a promising probe of the nature of dark energy. The detection of BAO requires measuring galaxy positions and redshifts. "Transversal" (angular…

天体物理学 · 物理学 2011-02-11 N. Benitez , E. Gaztanaga , R. Miquel , F. Castander , M. Moles , M. Crocce , A. Fernandez-Soto , P. Fosalba , F. Ballesteros , J. Campa , L. Cardiel-Sas , J. Castilla , D. Cristobal-Hornillos , M. Delfino , E. Fernandez , C. Fernandez-Sopuerta , J. Garcia-Bellido , J. A. Lobo , V. J. Martinez , A. Ortiz , A. Pacheco , S. Paredes , M. J. Pons-Borderia , E. Sanchez , S. F. Sanchez , J. Varela , J. F. de Vicente

Extensive analysis of reconstruction algorithms for DESI 2024 baryon acoustic oscillations

Reconstruction of the baryon acoustic oscillation (BAO) signal has been a standard procedure in BAO analyses over the past decade and has helped to improve the BAO parameter precision by a factor of ~2 on average. The Dark Energy…

宇宙学与河外天体物理 · 物理学 2026-03-02 X. Chen , Z. Ding , E. Paillas , S. Nadathur , H. Seo , S. Chen , N. Padmanabhan , M. White , A. de Mattia , P. McDonald , A. J. Ross , A. Variu , A. Carnero Rosell , B. Hadzhiyska , M. M. S Hanif , D. Forero-Sánchez , S. Ahlen , O. Alves , U. Andrade , S. BenZvi , D. Bianchi , D. Brooks , E. Chaussidon , T. Claybaugh , A. de la Macorra , Biprateep Dey , K. Fanning , S. Ferraro , A. Font-Ribera , J. E. Forero-Romero , C. Garcia-Quintero , E. Gaztañaga , S. Gontcho A Gontcho , G. Gutierrez , C. Hahn , K. Honscheid , S. Juneau , R. Kehoe , D. Kirkby , T. Kisner , A. Kremin , M. E. Levi , A. Meisner , J. Mena-Fernández , R. Miquel , J. Moustakas , A. Muñoz-Gutiérrez , F. Nikakhtar , N. Palanque-Delabrouille , W. J. Percival , F. Prada , I. Pérez-Ràfols , M. Rashkovetskyi , G. Rossi , R. Ruggeri , E. Sanchez , C. Saulder , D. Schlegel , M. Schubnell , A. Smith , D. Sprayberry , G. Tarlé , D. Valcin , M. Vargas-Magaña , B. A. Weaver , S. Yuan , R. Zhou

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…

天体物理仪器与方法 · 物理学 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

Baryonic acoustic oscillations simulations for the Large Synoptic Survey Telescope (LSST)

The baryonic acoustic oscillations are features in the spatial distribution of the galaxies which, if observed at different epochs, probe the nature of the dark energy. In order to be able to measure the parameters of the dark energy…

宇宙学与河外天体物理 · 物理学 2010-09-29 A. Gorecki , A. Abate , R. Ansari , A. Barrau , S. Baumont , M. Moniez

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

Full-Shape analysis of the power spectrum and bispectrum of DESI DR1 LRG and QSO samples

We present the first joint analysis of the power spectrum and bispectrum using the Data Release 1 (DR1) of the Dark Energy Spectroscopic Instrument (DESI), focusing on Luminous Red Galaxies (LRGs) and quasars (QSOs) across a redshift range…

宇宙学与河外天体物理 · 物理学 2025-06-10 S. Novell-Masot , H. Gil-Marín , L. Verde , J. Aguilar , S. Ahlen , S. Bailey , S. BenZvi , D. Bianchi , D. Brooks , E. Buckley-Geer , A. Carnero Rosell , E. Chaussidon , T. Claybaugh , S. Cole , A. Cuceu , K. S. Dawson , A. de la Macorra , R. Demina , A. Dey , B. Dey , P. Doel , S. Ferraro , A. Font-Ribera , J. E. Forero-Romero , E. Gaztañaga , S. Gontcho A Gontcho , A. X. Gonzalez-Morales , G. Gutierrez , H. K. Herrera-Alcantar , K. Honscheid , C. Howlett , S. Juneau , R. Kehoe , D. Kirkby , T. Kisner , A. Kremin , C. Lamman , M. Landriau , L. Le Guillou , M. E. Levi , C. Magneville , M. Manera , A. Meisner , R. Miquel , J. Moustakas , A. Muñoz-Gutiérrez , A. D. Myers , S. Nadathur , G. Niz , H. E. Noriega , W. J. Percival , C. Poppett , F. Prada , I. Pérez-Ràfols , A. J. Ross , G. Rossi , L. Samushia , E. Sanchez , D. Schlegel , M. Schubnell , H. Seo , J. Silber , D. Sprayberry , G. Tarlé , M. Vargas-Magaña , B. A. Weaver , P. Zarrouk , R. Zhou , H. Zou

Estudiando las estructuras a gran escala del Universo con la teor\'ia de perturbaciones no lineal

The Large-Scale Structure (LSS) of the Universe provides valuable information for modern cosmology. The future redshift surveys, as DESI (Dark Energy Spectroscopic Instrument), will measure millions of galaxies and quasars, which allows to…

宇宙学与河外天体物理 · 物理学 2024-02-27 Dante V. Gomez-Navarro

The Baryon Oscillation Spectroscopic Survey: Precision measurements of the absolute cosmic distance scale

BOSS, the Baryon Oscillation Spectroscopic Survey, is a 5-year program to measure the absolute cosmic distance scale and expansion rate with percent-level precision at redshifts z<0.7 and z~2.5. BOSS uses the "standard ruler" provided by…

宇宙学与河外天体物理 · 物理学 2009-02-27 David Schlegel , Martin White , Daniel Eisenstein

Studying baryon acoustic oscillations using photometric redshifts from the DESI Legacy Imaging survey DR9

Context.The Dark Energy Spectroscopic Instrument (DESI) Legacy Imaging Survey DR9 (DR9 hereafter), with its extensive dataset of galaxy locations and photometric redshifts, presents an opportunity to study baryon acoustic oscillations…

宇宙学与河外天体物理 · 物理学 2025-03-12 Christoph Saulder , Yong-Seon Song , Minji Oh , Yi Zheng , Ashley J. Ross , Rongpu Zhou , Jeffrey A. Newman , Chia-Hsun Chuang , Jessica Nicole Aguilar , Steven Ahlen , Robert Blum , David Brooks , Todd Claybaugh , Axel de la Macorra , Biprateep Dey , Zhejie Ding , Peter Doel , Jaime E. Forero-Romero , Enrique Gaztañaga , Satya Gontcho A Gontcho , Gaston Gutierrez , Stephanie Juneau , David Kirkby , Theodore Kisner , Anthony Kremin , Andrew Lambert , Martin Landriau , Laurent Le Guillou , Michael Levi , Aaron Meisner , Eva-Maria Mueller , Andrea Muñoz-Gutiérrez , Gustavo Niz , Francisco Prada , Mehdi Rezaie , Graziano Rossi , Eusebio Sanchez , Michael Schubnell , Joseph Harry Silber , David Sprayberry , Gregory Tarlé , Francisco Valdes , Benjamin Alan Weaver , Hu Zou

Testing f (R) gravity models with DESI-BAO and other cosmological data

In this paper, we conduct a statistical analysis of various cosmological models within the framework of f (R) gravity theories, motivated by persistent challenges in modern cosmology, such as the unknown mechanisms driving the late-time…

宇宙学与河外天体物理 · 物理学 2025-08-04 Francisco Plaza , Lucila Kraiselburd

Strong Lens Discoveries in DESI Legacy Imaging Surveys DR10 with Two Deep Learning Architectures

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.…

宇宙学与河外天体物理 · 物理学 2025-08-28 Jose Carlos Inchausti , Christopher J. Storfer , Xiaosheng Huang , Yuan-Ming Hsu , Brandt Kaufmann , Chaitanya Pasupala , S. Banka , A. Dey , D. Lang , A. Meisner , J. Moustakas , A. D. Myers , E. F. Schlafly , D. J. Schlegel