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The Dark Energy Spectroscopic Instrument (DESI) was designed to conduct a survey covering 14,000 deg$^2$ over five years to constrain the cosmic expansion history through precise measurements of Baryon Acoustic Oscillations (BAO). The…
Cosmology and Nongalactic Astrophysics · Physics
2024-01-17
DESI Collaboration , A. G. Adame , J. Aguilar , S. Ahlen , S. Alam , G. Aldering , D. M. Alexander , R. Alfarsy , C. Allende Prieto , M. Alvarez , O. Alves , A. Anand , F. Andrade-Oliveira , E. Armengaud , J. Asorey , S. Avila , A. Aviles , S. Bailey , A. Balaguera-Antolínez , O. Ballester , C. Baltay , A. Bault , J. Bautista , J. Behera , S. F. Beltran , S. BenZvi , L. Beraldo e Silva , J. R. Bermejo-Climent , A. Berti , R. Besuner , F. Beutler , D. Bianchi , C. Blake , R. Blum , A. S. Bolton , S. Brieden , A. Brodzeller , D. Brooks , Z. Brown , E. Buckley-Geer , E. Burtin , L. Cabayol-Garcia , Z. Cai , R. Canning , L. Cardiel-Sas , A. Carnero Rosell , F. J. Castander , J. L. Cervantes-Cota , S. Chabanier , E. Chaussidon , J. Chaves-Montero , S. Chen , C. Chuang , T. Claybaugh , S. Cole , A. P. Cooper , A. Cuceu , T. M. Davis , K. Dawson , R. de Belsunce , R. de la Cruz , A. de la Macorra , A. de Mattia , R. Demina , U. Demirbozan , J. DeRose , A. Dey , B. Dey , G. Dhungana , J. Ding , Z. Ding , P. Doel , R. Doshi , K. Douglass , A. Edge , S. Eftekharzadeh , D. J. Eisenstein , A. Elliott , S. Escoffier , P. Fagrelius , X. Fan , K. Fanning , V. A. Fawcett , S. Ferraro , J. Ereza , B. Flaugher , A. Font-Ribera , D. Forero-Sánchez , J. E. Forero-Romero , C. S. Frenk , B. T. Gänsicke , L. Á. García , J. García-Bellido , C. Garcia-Quintero , L. H. Garrison , H. Gil-Marín , J. Golden-Marx , S. Gontcho A Gontcho , A. X. Gonzalez-Morales , V. Gonzalez-Perez , C. Gordon , O. Graur , D. Green , D. Gruen , J. Guy , B. Hadzhiyska , C. Hahn , J. J. Han , M. M. S Hanif , H. K. Herrera-Alcantar , K. Honscheid , J. Hou , C. Howlett , D. Huterer , V. Iršič , M. Ishak , A. Jana , L. Jiang , J. Jimenez , Y. P. Jing , S. Joudaki , R. Joyce , E. Jullo , S. Juneau , N. Kizhuprakkat , N. G. Karaçaylı , T. Karim , R. Kehoe , S. Kent , A. Khederlarian , S. Kim , D. Kirkby , T. Kisner , F. Kitaura , J. Kneib , S. E. Koposov , A. Kovács , A. Kremin , A. Krolewski , B. L'Huillier , O. Lahav , A. Lambert , C. Lamman , T. -W. Lan , M. Landriau , D. Lang , J. U. Lange , J. Lasker , L. Le Guillou , A. Leauthaud , M. E. Levi , T. S. Li , E. Linder , A. Lyons , C. Magneville , M. Manera , C. J. Manser , D. Margala , P. Martini , P. McDonald , G. E. Medina , L. Medina-Varela , A. Meisner , J. Mena-Fernández , J. Meneses-Rizo , M. Mezcua , R. Miquel , P. Montero-Camacho , J. Moon , S. Moore , J. Moustakas , E. Mueller , J. Mundet , A. Muñoz-Gutiérrez , A. D. Myers , S. Nadathur , L. Napolitano , R. Neveux , J. A. Newman , J. Nie , G. Niz , P. Norberg , H. E. Noriega , E. Paillas , N. Palanque-Delabrouille , A. Palmese , P. Zhiwei , D. Parkinson , S. Penmetsa , W. J. Percival , A. Pérez-Fernández , I. Pérez-Ràfols , M. Pieri , C. Poppett , A. Porredon , F. Prada , R. Pucha , A. Raichoor , C. Ramírez-Pérez , S. Ramirez-Solano , M. Rashkovetskyi , C. Ravoux , A. Rocher , C. Rockosi , A. J. Ross , G. Rossi , R. Ruggeri , V. Ruhlmann-Kleider , C. G. Sabiu , K. Said , A. Saintonge , L. Samushia , E. Sanchez , C. Saulder , E. Schaan , E. F. Schlafly , D. Schlegel , D. Scholte , M. Schubnell , H. Seo , A. Shafieloo , R. Sharples , W. Sheu , J. Silber , F. Sinigaglia , M. Siudek , Z. Slepian , A. Smith , D. Sprayberry , L. Stephey , J. Suárez-Pérez , Z. Sun , T. Tan , G. Tarlé , R. Tojeiro , L. A. Ureña-López , R. Vaisakh , D. Valcin , F. Valdes , M. Valluri , M. Vargas-Magaña , A. Variu , L. Verde , M. Walther , B. Wang , M. S. Wang , B. A. Weaver , N. Weaverdyck , R. H. Wechsler , M. White , Y. Xie , J. Yang , C. Yèche , J. Yu , S. Yuan , H. Zhang , Z. Zhang , C. Zhao , Z. Zheng , R. Zhou , Z. Zhou , H. Zou , S. Zou , Y. Zu
We present the one-dimensional Lyman-$\alpha$ forest power spectrum measurement using the first data provided by the Dark Energy Spectroscopic Instrument (DESI). The data sample comprises $26,330$ quasar spectra, at redshift $z > 2.1$,…
Cosmology and Nongalactic Astrophysics · Physics
2025-03-27
Corentin Ravoux , Marie Lynn Abdul-Karim , Eric Armengaud , Michael Walther , Naim Göksel Karaçaylı , Paul Martini , Julien Guy , Jessica Nicole Aguilar , Steven Ahlen , Stephen Bailey , Julian Bautista , Sergio Felipe Beltran , David Brooks , Laura Cabayol-Garcia , Solène Chabanier , Edmond Chaussidon , Jonás Chaves-Montero , Kyle Dawson , Rodrigo de la Cruz , Axel de la Macorra , Peter Doel , Kevin Fanning , Andreu Font-Ribera , Jaime Forero-Romero , Satya Gontcho A Gontcho , Alma Gonzalez-Morales , Calum Gordon , Hiram Herrera-Alcantar , Klaus Honscheid , Vid Iršič , Mustapha Ishak , Robert Kehoe , Theodore Kisner , Anthony Kremin , Martin Landriau , Laurent Le Guillou , Michael Levi , Zarija Lukić , Christophe Magneville , Aaron Meisner , Ramon Miquel , John Moustakas , Eva-Maria Mueller , Andrea Muñoz-Gutiérrez , Lucas Napolitano , Jundan Nie , Gustavo Niz , Nathalie Palanque-Delabrouille , Will Percival , Ignasi Pérez-Ràfols , Matthew Pieri , Claire Poppett , Francisco Prada , César Ramírez Pérez , Graziano Rossi , Eusebio Sanchez , David Schlegel , Michael Schubnell , Hee-Jong Seo , Francesco Sinigaglia , Ting Tan , Gregory Tarlé , Ben Wang , Benjamin Weaver , Christophe Yèche , Zhimin Zhou
Deep spectroscopic samples can be used to improve photometric redshift (photo-$z$) estimates and reduce uncertainties on redshift distributions. Such improvements can increase the cosmological constraining power of large imaging-based…
Instrumentation and Methods for Astrophysics · Physics
2026-04-08
Biprateep Dey , Jeffrey A. Newman , Tianqing Zhang , J. Aguilar , S. Ahlen , A. Anand , B. Andrews , S. Bailey , D. Bianchi , D. Brooks , F. J. Castander , T. Claybaugh , A. Cuceu , K. S. Dawson , A. de la Macorra , J. Della Costa , Arjun Dey , P. Doel , S. Ferraro , A. Font-Ribera , E. Gaztañaga , Satya Gontcho A Gontcho , D. Gruen , G. Gutierrez , J. Guy , H. K. Herrera-Alcantar , K. Honscheid , M. Ishak , R. Joyce , R. Kehoe , D. Kirkby , T. Kisner , A. Kremin , O. Lahav , M. Landriau , L. Le Guillou , A. Leauthaud , M. E. Levi , M. Manera , P. Martini , J. McCullough , A. Meisner , R. Miquel , J. Moustakas , A. D. Myers , J. Myles , S. Nadathur , N. Palanque-Delabrouille , W. J. Percival , F. Prada , I. Pérez-Ràfols , G. Rossi , L. Samushia , E. Sanchez , D. Schlegel , M. Schubnell , H. Seo , J. Silber , D. Sprayberry , G. Tarlé , B. A. Weaver , N. Weaverdyck , R. H. Wechsler , R. Zhou , H. Zou
The Dark Energy Spectroscopic Instrument (DESI), a multiplexed fiber-fed spectrograph, is a Stage-IV ground-based dark energy experiment aiming to measure redshifts for 29 million Emission-Line Galaxies (ELG), 4 million Luminous Red…
Cosmology and Nongalactic Astrophysics · Physics
2017-04-12
Lucas Pinol , Robert N. Cahn , Nick Hand , Uros Seljak , Martin White
The Dark Energy Spectroscopic Instrument (DESI) is a new instrument currently under construction for the Mayall 4-m telescope at Kitt Peak National Observatory. It will consist of a wide-field optical corrector with a 3.2 degree diameter…
Instrumentation and Methods for Astrophysics · Physics
2018-07-26
Klaus Honscheid , Ann Elliott , Elizabeth Buckley-Geer , Bezhad Abreshi , Francisco Castender , Luiz daCosta , Stephen Kent , David Kirkby , Robert Marshall , Eric Neilsen , Riccardo Ogando , David Rabinowitz , Aaron roodman , Santiago Serrano , David Brooks , Michael Levi , Greg Tarle
DESI is a groundbreaking international project to observe more than 40 million quasars and galaxies over a 5-year period to create a 3D map of the sky. This map will enable us to probe multiple aspects of cosmology, from dark energy to…
The Dark Energy Spectroscopic Instrument (DESI) completed its five-month Survey Validation in May 2021. Spectra of stellar and extragalactic targets from Survey Validation constitute the first major data sample from the DESI survey. This…
Cosmology and Nongalactic Astrophysics · Physics
2024-10-18
DESI Collaboration , A. G. Adame , J. Aguilar , S. Ahlen , S. Alam , G. Aldering , D. M. Alexander , R. Alfarsy , C. Allende Prieto , M. Alvarez , O. Alves , A. Anand , F. Andrade-Oliveira , E. Armengaud , J. Asorey , S. Avila , A. Aviles , S. Bailey , A. Balaguera-Antolínez , O. Ballester , C. Baltay , A. Bault , J. Bautista , J. Behera , S. F. Beltran , S. BenZvi , L. Beraldo e Silva , J. R. Bermejo-Climent , A. Berti , R. Besuner , F. Beutler , D. Bianchi , C. Blake , R. Blum , A. S. Bolton , S. Brieden , A. Brodzeller , D. Brooks , Z. Brown , E. Buckley-Geer , E. Burtin , L. Cabayol-Garcia , Z. Cai , R. Canning , L. Cardiel-Sas , A. Carnero Rosell , F. J. Castander , J. L. Cervantes-Cota , S. Chabanier , E. Chaussidon , J. Chaves-Montero , S. Chen , X. Chen , C. Chuang , T. Claybaugh , S. Cole , A. P. Cooper , A. Cuceu , T. M. Davis , K. Dawson , R. de Belsunce , R. de la Cruz , A. de la Macorra , J. Della Costa , A. de Mattia , R. Demina , U. Demirbozan , J. DeRose , A. Dey , B. Dey , G. Dhungana , J. Ding , Z. Ding , P. Doel , R. Doshi , K. Douglass , A. Edge , S. Eftekharzadeh , D. J. Eisenstein , A. Elliott , S. Escoffier , P. Fagrelius , X. Fan , K. Fanning , V. A. Fawcett , S. Ferraro , J. Ereza , B. Flaugher , A. Font-Ribera , D. Forero-Sánchez , J. E. Forero-Romero , C. S. Frenk , B. T. Gänsicke , L. Á. García , J. García-Bellido , C. Garcia-Quintero , L. H. Garrison , H. Gil-Marín , J. Golden-Marx , S. Gontcho A Gontcho , A. X. Gonzalez-Morales , V. Gonzalez-Perez , C. Gordon , O. Graur , D. Green , D. Gruen , J. Guy , B. Hadzhiyska , C. Hahn , J. J. Han , M. M. S Hanif , H. K. Herrera-Alcantar , K. Honscheid , J. Hou , C. Howlett , D. Huterer , V. Iršič , M. Ishak , A. Jacques , A. Jana , L. Jiang , J. Jimenez , Y. P. Jing , S. Joudaki , E. Jullo , S. Juneau , N. Kizhuprakkat , N. G. Karaçaylı , T. Karim , R. Kehoe , S. Kent , A. Khederlarian , S. Kim , D. Kirkby , T. Kisner , F. Kitaura , J. Kneib , S. E. Koposov , A. Kovács , A. Kremin , A. Krolewski , B. L'Huillier , O. Lahav , A. Lambert , C. Lamman , T. -W. Lan , M. Landriau , D. Lang , J. U. Lange , J. Lasker , A. Leauthaud , L. Le Guillou , M. E. Levi , T. S. Li , E. Linder , A. Lyons , C. Magneville , M. Manera , C. J. Manser , D. Margala , P. Martini , P. McDonald , G. E. Medina , L. Medina-Varela , A. Meisner , J. Mena-Fernández , J. Meneses-Rizo , M. Mezcua , R. Miquel , P. Montero-Camacho , J. Moon , S. Moore , J. Moustakas , E. Mueller , J. Mundet , A. Muñoz-Gutiérrez , A. D. Myers , S. Nadathur , L. Napolitano , R. Neveux , J. A. Newman , J. Nie , R. Nikutta , G. Niz , P. Norberg , H. E. Noriega , E. Paillas , N. Palanque-Delabrouille , A. Palmese , P. Zhiwei , D. Parkinson , S. Penmetsa , W. J. Percival , A. Pérez-Fernández , I. Pérez-Ràfols , M. Pieri , C. Poppett , A. Porredon , S. Pothier , F. Prada , R. Pucha , A. Raichoor , C. Ramírez-Pérez , S. Ramirez-Solano , M. Rashkovetskyi , C. Ravoux , A. Rocher , C. Rockosi , A. J. Ross , G. Rossi , R. Ruggeri , V. Ruhlmann-Kleider , C. G. Sabiu , K. Said , A. Saintonge , L. Samushia , E. Sanchez , C. Saulder , E. Schaan , E. F. Schlafly , D. Schlegel , D. Scholte , M. Schubnell , H. Seo , A. Shafieloo , R. Sharples , W. Sheu , J. Silber , F. Sinigaglia , M. Siudek , Z. Slepian , A. Smith , M. T. Soumagnac , D. Sprayberry , L. Stephey , J. Suárez-Pérez , Z. Sun , T. Tan , G. Tarlé , R. Tojeiro , L. A. Ureña-López , R. Vaisakh , D. Valcin , F. Valdes , M. Valluri , M. Vargas-Magaña , A. Variu , L. Verde , M. Walther , B. Wang , M. S. Wang , B. A. Weaver , N. Weaverdyck , R. H. Wechsler , M. White , Y. Xie , J. Yang , C. Yèche , J. Yu , S. Yuan , H. Zhang , Z. Zhang , C. Zhao , Z. Zheng , R. Zhou , Z. Zhou , H. Zou , S. Zou , Y. Zu
The Dark Energy Spectroscopic Instrument (DESI) is under construction to measure the expansion history of the Universe using the Baryon Acoustic Oscillation technique. The spectra of 35 million galaxies and quasars over 14000 square degrees…
Instrumentation and Methods for Astrophysics · Physics
2018-07-26
Timothy N. Miller , Robert W. Besuner , Michael E. Levi , Michael Lampton , Patrick Jelinsky , Henry Heetderks , David J. Schlegel , Jerry Edelstein , Peter Doel , David Brooks , Stephen Kent , Gary Poczulp , Michael J. Sholl
In 2021 May, the Dark Energy Spectroscopic Instrument (DESI) began a 5 yr survey of approximately 50 million total extragalactic and Galactic targets. The primary DESI dark-time targets are emission line galaxies (ELGs), luminous red…
Instrumentation and Methods for Astrophysics · Physics
2023-01-18
Adam D. Myers , John Moustakas , Stephen Bailey , Benjamin A. Weaver , Andrew P. Cooper , Jaime E. Forero-Romero , Bela Abolfathi , David M. Alexander , David Brooks , Edmond Chaussidon , Chia-Hsun Chuang , Kyle Dawson , Arjun Dey , Biprateep Dey , Govinda Dhungana , Peter Doel , Kevin Fanning , Enrique Gaztañaga , Satya Gontcho A Gontcho , Alma X. Gonzalez-Morales , ChangHoon Hahn , Hiram K. Herrera-Alcantar , Klaus Honscheid , Mustapha Ishak , Tanveer Karim , David Kirkby , Theodore Kisner , Sergey E. Koposov , Anthony Kremin , Ting-Wen Lan , Martin Landriau , Dustin Lang , Michael E. Levi , Christophe Magneville , Lucas Napolitano , Paul Martini , Aaron Meisner , Jeffrey A. Newman , Nathalie Palanque-Delabrouille , Will Percival , Claire Poppett , Francisco Prada , Anand Raichoor , Ashley J. Ross , Edward F. Schlafly , David Schlegel , Michael Schubnell , Ting Tan , Gregory Tarle , Michael J. Wilson , Christophe Yèche , Rongpu Zhou , Zhimin Zhou , Hu Zou
A system of 5,020 robotic fiber positioners was installed in 2019 on the Mayall Telescope, at Kitt Peak National Observatory. The robots automatically re-target their optical fibers every 10 - 20 minutes, each to a precision of several…
Instrumentation and Methods for Astrophysics · Physics
2022-12-14
Joseph Harry Silber , Parker Fagrelius , Kevin Fanning , Michael Schubnell , Jessica Nicole Aguilar , Steven Ahlen , Jon Ameel , Otger Ballester , Charles Baltay , Chris Bebek , Dominic Benton Beard , Robert Besuner , Laia Cardiel-Sas , Ricard Casas , Francisco Javier Castander , Todd Claybaugh , Carl Dobson , Yutong Duan , Patrick Dunlop , Jerry Edelstein , William T. Emmet , Ann Elliott , Matthew Evatt , Irena Gershkovich , Julien Guy , Stu Harris , Henry Heetderks , Ian Heetderks , Klaus Honscheid , Jose Maria Illa , Patrick Jelinsky , Sharon R. Jelinsky , Jorge Jimenez , Armin Karcher , Stephen Kent , David Kirkby , Jean-Paul Kneib , Andrew Lambert , Mike Lampton , Daniela Leitner , Michael Levi , Jeremy McCauley , Aaron Meisner , Timothy N. Miller , Ramon Miquel , Juliá Mundet , Claire Poppett , David Rabinowitz , Kevin Reil , David Roman , David Schlegel , Santiago Serrano , William Van Shourt , David Sprayberry , Gregory Tarlé , Suk Sien Tie , Curtis Weaverdyck , Kai Zhang , Marco Azzaro , Stephen Bailey , Santiago Becerril , Tami Blackwell , Mohamed Bouri , David Brooks , Elizabeth Buckley-Geer , Jose Peñate Castro , Mark Derwent , Arjun Dey , Govinda Dhungana , Peter Doel , Daniel J. Eisenstein , Nasib Fahim , Juan Garcia-Bellido , Enrique Gaztañaga , Satya Gontcho A Gontcho , Gaston Gutierrez , Philipp Hörler , Robert Kehoe , Theodore Kisner , Anthony Kremin , Luzius Kronig , Martin Landriau , Laurent Le Guillou , Paul Martini , John Moustakas , Nathalie Palanque-Delabrouille , Xiyan Peng , Will Percival , Francisco Prada , Carlos Allende Prieto , Guillermo Gonzalez de Rivera , Eusebio Sanchez , Justo Sanchez , Ray Sharples , Marcelle Soares-Santos , Edward Schlafly , Benjamin Alan Weaver , Zhimin Zhou , Yaling Zhu , Hu Zou
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…
Cosmology and Nongalactic Astrophysics · Physics
2022-07-04
Monica Valluri , Solene Chabanier , Vid Irsic , Eric Armengaud , Michael Walther , Connie Rockosi , Miguel A. Sanchez-Conde , Leandro Beraldo e Silva , Andrew P. Cooper , Elise Darragh-Ford , Kyle Dawson , Alis J. Deason , Simone Ferraro , Jaime E. Forero-Romero , Antonella Garzilli , Ting Li , Zarija Lukic , Christopher J. Manser , Nathalie Palanque-Delabrouille , Corentin Ravoux , Ting Tan , Wenting Wang , Risa Wechsler , Andreia Carrillo , Arjun Dey , Sergey E. Koposov , Yao-Yuan Mao , Paulo Montero-Camacho , Ekta Patel , Graziano Rossi , L. Arturo Urena-Lopez , Octavio Valenzuela
The Dark Energy Spectroscopic Instrument (DESI) survey will measure spectroscopic redshifts for millions of galaxies across roughly $14,000 \, \mathrm{deg}^2$ of the sky. Cross-correlating targets in the DESI survey with complementary…
Cosmology and Nongalactic Astrophysics · Physics
2024-07-17
J. U. Lange , C. Blake , C. Saulder , N. Jeffrey , J. DeRose , G. Beltz-Mohrmann , N. Emas , C. Garcia-Quintero , B. Hadzhiyska , S. Heydenreich , M. Ishak , S. Joudaki , E. Jullo , A. Krolewski , A. Leauthaud , L. Medina-Varela , A. Porredon , G. Rossi , R. Ruggeri , E. Xhakaj , S. Yuan , J. Aguilar , S. Ahlen , D. Brooks , T. Claybaugh , A. de la Macorra , P. Doel , K. Fanning , S. Ferraro , A. Font-Ribera , J. E. Forero-Romero , E. Gaztañaga , S. Gontcho A Gontcho , S. Juneau , R. Kehoe , T. Kisner , A. Kremin , M. Landriau , M. E. Levi , M. Manera , R. Miquel , J. Moustakas , E. Mueller , A. D. Myers , J. Nie , G. Niz , N. Palanque-Delabrouille , C. Poppett , M. Rezaie , E. Sanchez , M. Schubnell , H. Seo , J. Silber , D. Sprayberry , G. Tarlé , M. Vargas-Magaña , R. H. Wechsler , Z. Zhou , H. Zou
The Dark Energy Spectroscopic Instrument (DESI) is carrying out a 5-year survey that aims to measure the redshifts of tens of millions of galaxies and quasars, including 8 million luminous red galaxies (LRGs) in the redshift range of…
Cosmology and Nongalactic Astrophysics · Physics
2023-01-19
Rongpu Zhou , Biprateep Dey , Jeffrey A. Newman , Daniel J. Eisenstein , K. Dawson , S. Bailey , A. Berti , J. Guy , Ting-Wen Lan , H. Zou , J. Aguilar , S. Ahlen , Shadab Alam , D. Brooks , A. de la Macorra , A. Dey , G. Dhungana , K. Fanning , A. Font-Ribera , S. Gontcho A Gontcho , K. Honscheid , Mustapha Ishak , T. Kisner , A. Kovács , A. Kremin , M. Landriau , Michael E. Levi , C. Magneville , Marc Manera , P. Martini , Aaron M. Meisner , R. Miquel , J. Moustakas , Adam D. Myers , Jundan Nie , N. Palanque-Delabrouille , W. J. Percival , C. Poppett , F. Prada , A. Raichoor , A. J. Ross , E. Schlafly , D. Schlegel , M. Schubnell , Gregory Tarlé , B. A. Weaver , R. H. Wechsler , Christophe Yèche , Zhimin Zhou
The forthcoming Dark Energy Spectroscopic Instrument (DESI) experiment plans to measure the effects of dark energy on the expansion of the Universe and create a $3$D map of the Universe using galaxies up to $z \sim 1.6$ and QSOs up to $z…
Astrophysics of Galaxies · Physics
2020-08-12
Tanveer Karim , Jae H. Lee , Daniel J. Eisenstein , Etienne Burtin , John Moustakas , Anand Raichoor , Christophe Yèche
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…
Cosmology and Nongalactic Astrophysics · Physics
2022-03-15
Kyle Dawson , Andrew Hearin , Katrin Heitmann , Mustapha Ishak , Johannes Ulf Lange , Martin White , Rongpu Zhou
The Dark Energy Spectroscopic Instrument (DESI) Survey has obtained a set of spectroscopic measurements of galaxies to validate the final survey design and target selections. To assist in these tasks, we visually inspect (VI) DESI spectra…
Cosmology and Nongalactic Astrophysics · Physics
2024-10-10
Ting-Wen Lan , R. Tojeiro , E. Armengaud , J. Xavier Prochaska , T. M. Davis , David M. Alexander , A. Raichoor , Rongpu Zhou , Christophe Yeche , C. Balland , S. BenZvi , A. Berti , R. Canning , A. Carr , H. Chittenden , S. Cole , M. -C. Cousinou , K. Dawson , Biprateep Dey , K. Douglass , A. Edge , S. Escoffier , A. Glanville , S. Gontcho A Gontcho , J. Guy , C. Hahn , C. Howlett , Ho Seong Hwang , L. Jiang , A. Kovacs , M. Mezcua , S. Moore , S. Nadathur , M. Oh , D. Parkinson , A. Rocher , A. J. Ross , V. Ruhlmann-Kleider , C. G. Sabiu , K. Said , C. Saulder , D. Sierra-Porta , B. Weiner , J. Yu , P. Zarrouk , Y. Zhang , H. Zou , S. Ahlen , S. Bailey , D. Brooks , A. P. Cooper , A. de la Macorra , A. Dey , G. Dhungana , P. Doel , S. Eftekharzadeh , K. Fanning , A. Font-Ribera , L. Garrison , E. Gaztanaga , R. Kehoe , T. Kisner , A. Kremin , M. Landriau , L. Le Guillou , Michael E. Levi , C. Magneville , Aaron M. Meisner , R. Miquel , J. Moustakas , Adam D. Myers , Jeffrey A. Newman , J. D. Nie , N. Palanque-Delabrouille , W. J. Percival , C. Poppett , F. Prada , M. Schubnell , Gregory Tarle , B. A. Weaver , K. Zhang , Zhimin Zhou
Over the next five years, the Dark Energy Spectroscopic Instrument (DESI) will use 10 spectrographs with 5000 fibers on the 4m Mayall Telescope at Kitt Peak National Observatory to conduct the first Stage-IV dark energy galaxy survey. At $z…
Cosmology and Nongalactic Astrophysics · Physics
2023-06-07
ChangHoon Hahn , Michael J. Wilson , Omar Ruiz-Macias , Shaun Cole , David H. Weinberg , John Moustakas , Anthony Kremin , Jeremy L. Tinker , Alex Smith , Risa H. Wechsler , Steven Ahlen , Shadab Alam , Stephen Bailey , David Brooks , Andrew P. Cooper , Tamara M. Davis , Kyle Dawson , Arjun Dey , Biprateep Dey , Sarah Eftekharzadeh , Daniel J. Eisenstein , Kevin Fanning , Jaime E. Forero-Romero , Carlos S. Frenk , Enrique Gaztañaga , Satya Gontcho A Gontcho , Julien Guy , Klaus Honscheid , Mustapha Ishak , Stéphanie Juneau , Robert Kehoe , Theodore Kisner , Ting-Wen Lan , Martin Landriau , Laurent Le Guillou , Michael E. Levi , Christophe Magneville , Paul Martini , Aaron Meisner , Adam D. Myers , Jundan Nie , Peder Norberg , Nathalie Palanque-Delabrouille , Will J. Percival , Claire Poppett , Francisco Prada , Anand Raichoor , Ashley J. Ross , Sasha Safonova , Christoph Saulder , Eddie Schlafly , David Schlegel , David Sierra-Porta , Gregory Tarle , Benjamin A. Weaver , Christophe Yèche , Pauline Zarrouk , Rongpu Zhou , Zhimin Zhou , Hu Zou
The Dark Energy Spectroscopic Instrument (DESI) survey will measure large-scale structures using quasars as direct tracers of dark matter in the redshift range 0.9<z<2.1 and using Ly-alpha forests in quasar spectra at z>2.1. We present…
Cosmology and Nongalactic Astrophysics · Physics
2023-03-08
Edmond Chaussidon , Christophe Yèche , Nathalie Palanque-Delabrouille , David M. Alexander , Jinyi Yang , Steven Ahlen , Stephen. Bailey , David Brooks , Zheng Cai , Solène Chabanier , Tamara M. Davis , Kyle Dawson , Axel de la Macorra , Arjun Dey , Biprateep Dey , Sarah Eftekharzadeh , Daniel J. Eisenstein , Kevin Fanning , Andreu Font-Ribera , Enrique Gaztañaga , Satya Gontcho A Gontcho , Alma X. Gonzalez-Morales , Julien Guy , Hiram K. Herrera-Alcantar , Klaus Honscheid , Mustapha Ishak , Linhua Jiang , Stephanie Juneau , Robert Kehoe , Theodore Kisner , Andras Kovács , Anthony Kremin , Ting-Wen Lan , Martin Landriau , Laurent Le Guillou , Michael E. Levi , Christophe Magneville , Paul Martini , Aaron M. Meisner , John Moustakas , Andrea Muñoz-Gutiérrez , Adam D. Myers , Jeffrey A. Newman , Jundan Nie , Will J. Percival , Claire Poppett , Francisco Prada , Anand Raichoor , Corentin Ravoux , Ashley J. Ross , Edward Schlafly , David Schlegel , Ting Tan , Gregory Tarlé , Rongpu Zhou , Zhimin Zhou , Hu Zou
The Dark Energy Spectroscopic Instrument (DESI) is currently measuring the spectra of 40\,million galaxies and quasars, the largest such survey ever made to probe the nature of cosmological dark energy. The 4-meter Mayall telescope at Kitt…
Instrumentation and Methods for Astrophysics · Physics
2023-06-13
Timothy N. Miller , Peter Doel , Gaston Gutierrez , Robert Besuner , David Brooks , Giuseppe Gallo , Henry Heetderks , Patrick Jelinsky , Stephen M. Kent , Michael Lampton , Michael Levi , Ming Liang , Aaron Meisner , Michael J. Sholl , Joseph Harry Silber , David Sprayberry , Jessica Nicole Aguilar , Axel de la Macorra , Daniel Eisenstein , Kevin Fanning , Andreu Font-Ribera , Enrique Gaztanaga , Satya Gontcho A Gontcho , Klaus Honscheid , Jorge Jimenez , Dick Joyce , Robert Kehoe , Theodore Kisner , Anthony Kremin , Martin Landriau , Laurent Le Guillou , Christophe Magneville , Paul Martini , Ramon Miquel , John Moustakas , Jundan Nie , Will Percival , Claire Poppett , Francisco Prada , Graziano Rossi , David Schlegel , Michael Schubnell , Hee-Jong Seo , Ray Sharples , Gregory Tarle , Mariana Vargas-Magana , Zhimin Zhou
The Dark Energy Spectroscopic Instrument (DESI) is under construction to measure the expansion history of the universe using the Baryon Acoustic Oscillation (BAO) technique. The spectra of 35 million galaxies and quasars over $14000…
Instrumentation and Methods for Astrophysics · Physics
2019-08-20
Yutong Duan , Joseph H. Silber , Todd M. Claybaugh , Steven P. Ahlen , David Brooks , Gregory Tarlè