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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
The Dark Energy Spectroscopic Instrument (DESI) has embarked on an ambitious five-year survey to explore the nature of dark energy with spectroscopy of 40 million galaxies and quasars. DESI will determine precise redshifts and employ the…
Instrumentation and Methods for Astrophysics · Physics
2023-03-15
B. Abareshi , J. Aguilar , S. Ahlen , Shadab Alam , David M. Alexander , R. Alfarsy , L. Allen , C. Allende Prieto , O. Alves , J. Ameel , E. Armengaud , J. Asorey , Alejandro Aviles , S. Bailey , A. Balaguera-Antolínez , O. Ballester , C. Baltay , A. Bault , S. F. Beltran , B. Benavides , S. BenZvi , A. Berti , R. Besuner , Florian Beutler , D. Bianchi , C. Blake , P. Blanc , R. Blum , A. Bolton , S. Bose , D. Bramall , S. Brieden , A. Brodzeller , D. Brooks , C. Brownewell , E. Buckley-Geer , R. N. Cahn , Z. Cai , R. Canning , A. Carnero Rosell , P. Carton , R. Casas , F. J. Castander , J. L. Cervantes-Cota , S. Chabanier , E. Chaussidon , C. Chuang , C. Circosta , S. Cole , A. P. Cooper , L. da Costa , M. -C. Cousinou , A. Cuceu , T. M. Davis , K. Dawson , R. de la Cruz-Noriega , A. de la Macorra , A. de Mattia , J. Della Costa , P. Demmer , M. Derwent , A. Dey , B. Dey , G. Dhungana , Z. Ding , C. Dobson , P. Doel , J. Donald-McCann , J. Donaldson , K. Douglass , Y. Duan , P. Dunlop , J. Edelstein , S. Eftekharzadeh , D. J. Eisenstein , M. Enriquez-Vargas , S. Escoffier , M. Evatt , P. Fagrelius , X. Fan , K. Fanning , V. A. Fawcett , S. Ferraro , J. Ereza , B. Flaugher , A. Font-Ribera , J. E. Forero-Romero , C. S. Frenk , S. Fromenteau , B. T. Gänsicke , C. Garcia-Quintero , L. Garrison , E. Gaztañaga , F. Gerardi , H. Gil-Marín , S. Gontcho A Gontcho , Alma X. Gonzalez-Morales , G. Gonzalez-de-Rivera , V. Gonzalez-Perez , C. Gordon , O. Graur , D. Green , C. Grove , D. Gruen , G. Gutierrez , J. Guy , C. Hahn , S. Harris , D. Herrera , Hiram K. Herrera-Alcantar , K. Honscheid , C. Howlett , D. Huterer , V. Iršič , M. Ishak , P. Jelinsky , L. Jiang , J. Jimenez , Y. P. Jing , R. Joyce , E. Jullo , S. Juneau , N. G. Karaçaylı , M. Karamanis , A. Karcher , T. Karim , R. Kehoe , S. Kent , D. Kirkby , T. Kisner , F. Kitaura , S. E. Koposov , A. Kovács , A. Kremin , Alex Krolewski , B. L'Huillier , O. Lahav , A. Lambert , C. Lamman , Ting-Wen Lan , M. Landriau , S. Lane , D. Lang , J. U. Lange , J. Lasker , L. Le Guillou , A. Leauthaud , A. Le Van Suu , Michael E. Levi , T. S. Li , C. Magneville , M. Manera , Christopher J. Manser , B. Marshall , W. McCollam , P. McDonald , Aaron M. Meisner , J. Mena-Fernández M. Mezcua , T. Miller , R. Miquel , P. Montero-Camacho , J. Moon , J. Paul Martini , J. Meneses-Rizo , J. Moustakas , E. Mueller , Andrea Muñoz-Gutiérrez , Adam D. Myers , S. Nadathur , J. Najita , L. Napolitano , E. Neilsen , Jeffrey A. Newman , J. D. Nie , Y. Ning , G. Niz , P. Norberg , Hernán E. Noriega , T. O'Brien , A. Obuljen , N. Palanque-Delabrouille , A. Palmese , P. Zhiwei , D. Pappalardo , X. Peng , W. J. Percival , S. Perruchot , R. Pogge , C. Poppett , A. Porredon , F. Prada , J. Prochaska , R. Pucha , A. Pérez-Fernández , I. Pérez-Ráfols , D. Rabinowitz , A. Raichoor , S. Ramirez-Solano , César Ramírez-Pérez , C. Ravoux , K. Reil , M. Rezaie , A. Rocher , C. Rockosi , N. A. Roe , A. Roodman , A. J. Ross , G. Rossi , R. Ruggeri , V. Ruhlmann-Kleider , C. G. Sabiu , S. Safonova , K. Said , A. Saintonge , Javier Salas Catonga , L. Samushia , E. Sanchez , C. Saulder , E. Schaan , E. Schlafly , D. Schlegel , J. Schmoll , D. Scholte , M. Schubnell , A. Secroun , H. Seo , S. Serrano , Ray M. Sharples , Michael J. Sholl , Joseph Harry Silber , D. R. Silva , M. Sirk , M. Siudek , A. Smith , D. Sprayberry , R. Staten , B. Stupak , T. Tan , Gregory Tarlé , Suk Sien Tie , R. Tojeiro , L. A. Ureña-López , F. Valdes , O. Valenzuela , M. Valluri , M. Vargas-Magaña , L. Verde , M. Walther , B. Wang , M. S. Wang , B. A. Weaver , C. Weaverdyck , R. Wechsler , Michael J. Wilson , J. Yang , Y. Yu , S. Yuan , Christophe Yèche , H. Zhang , K. Zhang , Cheng Zhao , Rongpu Zhou , Zhimin Zhou , H. Zou , J. 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 sq deg will be…
Instrumentation and Methods for Astrophysics · Physics
2018-07-27
Daniela Leitner , Jessica Aguilar , Jon Ameel , Robert Besuner , Todd Claybaugh , Henry Heetderks , Michael Schubnell , Jean-Paul Kneib , Joseph Silber , Gregory Tarlé , Curtis Weaverdyck , Kai Zhang
DESI (Dark Energy Spectropic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations and the growth of structure through redshift-space distortions with a wide-area galaxy and quasar…
Instrumentation and Methods for Astrophysics · Physics
2016-12-14
DESI Collaboration , Amir Aghamousa , Jessica Aguilar , Steve Ahlen , Shadab Alam , Lori E. Allen , Carlos Allende Prieto , James Annis , Stephen Bailey , Christophe Balland , Otger Ballester , Charles Baltay , Lucas Beaufore , Chris Bebek , Timothy C. Beers , Eric F. Bell , José Luis Bernal , Robert Besuner , Florian Beutler , Chris Blake , Hannes Bleuler , Michael Blomqvist , Robert Blum , Adam S. Bolton , Cesar Briceno , David Brooks , Joel R. Brownstein , Elizabeth Buckley-Geer , Angela Burden , Etienne Burtin , Nicolas G. Busca , Robert N. Cahn , Yan-Chuan Cai , Laia Cardiel-Sas , Raymond G. Carlberg , Pierre-Henri Carton , Ricard Casas , Francisco J. Castander , Jorge L. Cervantes-Cota , Todd M. Claybaugh , Madeline Close , Carl T. Coker , Shaun Cole , Johan Comparat , Andrew P. Cooper , M. -C. Cousinou , Martin Crocce , Jean-Gabriel Cuby , Daniel P. Cunningham , Tamara M. Davis , Kyle S. Dawson , Axel de la Macorra , Juan De Vicente , Timothée Delubac , Mark Derwent , Arjun Dey , Govinda Dhungana , Zhejie Ding , Peter Doel , Yutong T. Duan , Anne Ealet , Jerry Edelstein , Sarah Eftekharzadeh , Daniel J. Eisenstein , Ann Elliott , Stéphanie Escoffier , Matthew Evatt , Parker Fagrelius , Xiaohui Fan , Kevin Fanning , Arya Farahi , Jay Farihi , Ginevra Favole , Yu Feng , Enrique Fernandez , Joseph R. Findlay , Douglas P. Finkbeiner , Michael J. Fitzpatrick , Brenna Flaugher , Samuel Flender , Andreu Font-Ribera , Jaime E. Forero-Romero , Pablo Fosalba , Carlos S. Frenk , Michele Fumagalli , Boris T. Gaensicke , Giuseppe Gallo , Juan Garcia-Bellido , Enrique Gaztanaga , Nicola Pietro Gentile Fusillo , Terry Gerard , Irena Gershkovich , Tommaso Giannantonio , Denis Gillet , Guillermo Gonzalez-de-Rivera , Violeta Gonzalez-Perez , Shelby Gott , Or Graur , Gaston Gutierrez , Julien Guy , Salman Habib , Henry Heetderks , Ian Heetderks , Katrin Heitmann , Wojciech A. Hellwing , David A. Herrera , Shirley Ho , Stephen Holland , Klaus Honscheid , Eric Huff , Timothy A. Hutchinson , Dragan Huterer , Ho Seong Hwang , Joseph Maria Illa Laguna , Yuzo Ishikawa , Dianna Jacobs , Niall Jeffrey , Patrick Jelinsky , Elise Jennings , Linhua Jiang , Jorge Jimenez , Jennifer Johnson , Richard Joyce , Eric Jullo , Stéphanie Juneau , Sami Kama , Armin Karcher , Sonia Karkar , Robert Kehoe , Noble Kennamer , Stephen Kent , Martin Kilbinger , Alex G. Kim , David Kirkby , Theodore Kisner , Ellie Kitanidis , Jean-Paul Kneib , Sergey Koposov , Eve Kovacs , Kazuya Koyama , Anthony Kremin , Richard Kron , Luzius Kronig , Andrea Kueter-Young , Cedric G. Lacey , Robin Lafever , Ofer Lahav , Andrew Lambert , Michael Lampton , Martin Landriau , Dustin Lang , Tod R. Lauer , Jean-Marc Le Goff , Laurent Le Guillou , Auguste Le Van Suu , Jae Hyeon Lee , Su-Jeong Lee , Daniela Leitner , Michael Lesser , Michael E. Levi , Benjamin L'Huillier , Baojiu Li , Ming Liang , Huan Lin , Eric Linder , Sarah R. Loebman , Zarija Lukić , Jun Ma , Niall MacCrann , Christophe Magneville , Laleh Makarem , Marc Manera , Christopher J. Manser , Robert Marshall , Paul Martini , Richard Massey , Thomas Matheson , Jeremy McCauley , Patrick McDonald , Ian D. McGreer , Aaron Meisner , Nigel Metcalfe , Timothy N. Miller , Ramon Miquel , John Moustakas , Adam Myers , Milind Naik , Jeffrey A. Newman , Robert C. Nichol , Andrina Nicola , Luiz Nicolati da Costa , Jundan Nie , Gustavo Niz , Peder Norberg , Brian Nord , Dara Norman , Peter Nugent , Thomas O'Brien , Minji Oh , Knut A. G. Olsen , Cristobal Padilla , Hamsa Padmanabhan , Nikhil Padmanabhan , Nathalie Palanque-Delabrouille , Antonella Palmese , Daniel Pappalardo , Isabelle Pâris , Changbom Park , Anna Patej , John A. Peacock , Hiranya V. Peiris , Xiyan Peng , Will J. Percival , Sandrine Perruchot , Matthew M. Pieri , Richard Pogge , Jennifer E. Pollack , Claire Poppett , Francisco Prada , Abhishek Prakash , Ronald G. Probst , David Rabinowitz , Anand Raichoor , Chang Hee Ree , Alexandre Refregier , Xavier Regal , Beth Reid , Kevin Reil , Mehdi Rezaie , Constance M. Rockosi , Natalie Roe , Samuel Ronayette , Aaron Roodman , Ashley J. Ross , Nicholas P. Ross , Graziano Rossi , Eduardo Rozo , Vanina Ruhlmann-Kleider , Eli S. Rykoff , Cristiano Sabiu , Lado Samushia , Eusebio Sanchez , Javier Sanchez , David J. Schlegel , Michael Schneider , Michael Schubnell , Aurélia Secroun , Uros Seljak , Hee-Jong Seo , Santiago Serrano , Arman Shafieloo , Huanyuan Shan , Ray Sharples , Michael J. Sholl , William V. Shourt , Joseph H. Silber , David R. Silva , Martin M. Sirk , Anze Slosar , Alex Smith , George F. Smoot , Debopam Som , Yong-Seon Song , David Sprayberry , Ryan Staten , Andy Stefanik , Gregory Tarle , Suk Sien Tie , Jeremy L. Tinker , Rita Tojeiro , Francisco Valdes , Octavio Valenzuela , Monica Valluri , Mariana Vargas-Magana , Licia Verde , Alistair R. Walker , Jiali Wang , Yuting Wang , Benjamin A. Weaver , Curtis Weaverdyck , Risa H. Wechsler , David H. Weinberg , Martin White , Qian Yang , Christophe Yeche , Tianmeng Zhang , Gong-Bo Zhao , Yi Zheng , Xu Zhou , Zhimin Zhou , Yaling Zhu , Hu Zou , Ying Zu
We present the design, fabrication, and testing of R-FLEX, a novel flexure mechanism for next-generation fiber-fed astronomical instruments. As the current Dark Energy Spectroscopic Instrument (DESI) revolutionizes cosmology with over 56…
Instrumentation and Methods for Astrophysics · Physics
2025-08-06
Nicholas R. Wenner , Joseph H. Silber , David J. Schlegel
The Dark Energy Spectroscopic Instrument (DESI) is a stage IV ground-based dark energy experiment planned to begin operations in 2020. In this article, we provided a short review of DESI presented during the conference {\it Recontres de…
Instrumentation and Methods for Astrophysics · Physics
2019-01-08
Mariana Vargas-Magana , David D. Brooks , Michael M. Levi , Gregory G. Tarle
The Dark Energy Spectroscopic Instrument (DESI) is a massively multiplexed fiber-fed spectrograph that will make the next major advance in dark energy in the timeframe 2018-2022. On the Mayall telescope, DESI will obtain spectra and…
Cosmology and Nongalactic Astrophysics · Physics
2013-08-06
Michael Levi , Chris Bebek , Timothy Beers , Robert Blum , Robert Cahn , Daniel Eisenstein , Brenna Flaugher , Klaus Honscheid , Richard Kron , Ofer Lahav , Patrick McDonald , Natalie Roe , David Schlegel , representing the DESI collaboration
The Dark Energy Spectroscopic Instrument (DESI) is under construction to measure the expansion history of the universe using the baryon acoustic oscillations technique. The spectra of 35 million galaxies and quasars over 14,000 square…
Instrumentation and Methods for Astrophysics · Physics
2018-05-04
Parker Fagrelius , Behzad Abareshi , Lori Allen , Otger Ballester , Charles Baltay , Robert Besuner , Elizabeth Buckley-Geer , Karen Butler , Laia Cardiel , Arjun Dey , Ann Elliott , William Emmet , Irena Gershkovich , Klaus Honscheid , Jose M. Illa , Jorge Jimenez , Michael Levi , Christopher Manser , Robert Marshall , Paul Martini , Anthony Paat , Ronald Probst , David Rabinowitz , Kevin Reil , Amy Robertson , Connie Rockosi , David Schlegel , Michael Schubnell , Santiago Serrano , Joseph Silber , Christian Soto , David Sprayberry , David Summers , Greg Tarle , Benjamin A. Weaver , Y. T. Duan
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 sq deg will be…
Instrumentation and Methods for Astrophysics · Physics
2018-07-26
Rebecca A. Coles , David Brooks , Mark Derwent , Paul Martini , Thomas O'Brien , Ashley Ross , Suk Sien Tie
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 sq deg will be…
Instrumentation and Methods for Astrophysics · Physics
2018-07-26
Kai Zhang , Joseph H. Silber , Henry D. Heetderks , Daniela Leitner , Michael Schubnell , Michael Levi , Gradey Wang , Kevin Fanning , Parker Fagrelius , Carl Dobson , Jessica Aguilar
The Dark Energy Spectroscopic Instrument (DESI) is under construction to measure the expansion history of the Universe using the Baryonic Acoustic Oscillation technique. The spectra of 35 million galaxies and quasars over 14000 sq deg will…
Instrumentation and Methods for Astrophysics · Physics
2018-11-27
Jürgen Schmoll , Robert Besuner , David Bramall , David Brooks , Jerry Edelstein , Patrick Jelinsky , Michael Levi , Graham Murray , Claire Poppett , Ray Sharples , Luke Tyas , David Schlegel
The recently commissioned Dark Energy Spectroscopic Instrument (DESI) will measure the expansion historyof the universe using the Baryon Acoustic Oscillation technique. The spectra of 35 million galaxies and quasarsover 14000 sq deg will be…
Instrumentation and Methods for Astrophysics · Physics
2024-07-24
Claire Poppett , Patrick Jelinsky , Julien Guy , Jerry Edelstein , Sharon Jelinsky , Jessica Aguilar , Ray Sharples , Jurgen Schmoll , David Bramall , Luke Tyas , Paul Martini , Kevin Fanning , Michael Levi , David Brooks , Peter Doel , Duan Yutong , Gregory Tarle , Erique Gaztanaga , Francisco Prada , the DESI Collaboration
Highly multiplexed, fiber-fed spectroscopy is enabling surveys of millions of stars and galaxies. The performance of these surveys depends on accurately positioning fibers in the focal plane to capture target light. We describe a technique…
Instrumentation and Methods for Astrophysics · Physics
2024-03-12
E. F. Schlafly , D. Schlegel , S. BenZvi , A. Raichoor , J. E. Forero-Romero , J. Aguilar , S. Ahlen , S. Bailey , A. Bault , D. Brooks , T. Claybaugh , K. Dawson , A. de la Macorra , Arjun Dey , P. Doel , E. Gaztañaga , S. Gontcho A Gontcho , J. Guy , C. Hahn , K. Honscheid , J. Jimenez , S. Kent , D. Kirkby , T. Kisner , A. Kremin , A. Lambert , M. Landriau , M. E. Levi , M. Manera , P. Martini , A. Meisner , R. Miquel , J. Moustakas , A. D. Myers , J. Nie , N. Palanque-Delabrouille , W. J. Percival , C. Poppett , F. Prada , D. Rabinowitz , M. Rezaie , G. Rossi , E. Sanchez , M. Schubnell , R. Sharples , J. Silber , G. Tarlé , B. A. Weaver , Z. Zhou , H. Zou
In this white paper, we present an experimental road map for spectroscopic experiments beyond DESI. DESI will be a transformative cosmological survey in the 2020s, mapping 40 million galaxies and quasars and capturing a significant fraction…
Cosmology and Nongalactic Astrophysics · Physics
2022-09-09
David J. Schlegel , Simone Ferraro , Greg Aldering , Charles Baltay , Segev BenZvi , Robert Besuner , Guillermo A. Blanc , Adam S. Bolton , Ana Bonaca , David Brooks , Elizabeth Buckley-Geer , Zheng Cai , Joseph DeRose , Arjun Dey , Peter Doel , Alex Drlica-Wagner , Xiaohui Fan , Gaston Gutierrez , Daniel Green , Julien Guy , Dragan Huterer , Leopoldo Infante , Patrick Jelinsky , Dionysios Karagiannis , Stephen M. Kent , Alex G. Kim , Jean-Paul Kneib , Juna A. Kollmeier , Anthony Kremin , Ofer Lahav , Martin Landriau , Dustin Lang , Alexie Leauthaud , Michael E. Levi , Eric V. Linder , Christophe Magneville , Paul Martini , Patrick McDonald , Christopher J. Miller , Adam D. Myers , Jeffrey A. Newman , Peter E. Nugent , Nathalie Palanque-Delabrouille , Nikhil Padmanabhan , Antonella Palmese , Claire Poppett , Jason X. Prochaska , Anand Raichoor , Solange Ramirez , Noah Sailer , Emmanuel Schaan , Michael Schubnell , Uros Seljak , Hee-Jong Seo , Joseph Silber , Joshua D. Simon , Zachary Slepian , Marcelle Soares-Santos , Greg Tarle , Monica Valluri , Noah J. Weaverdyck , Risa H. Wechsler , Martin White , Christophe Yeche , Rongpu Zhou
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
Paul Martini , Stephen Bailey , Robert W. Besuner , David Brooks , Peter Doel , Jerry Edelstein , Daniel Eisenstein , Brenna Flaugher , Gaston Gutierrez , Stewart E. Harris , Klaus Honscheid , Patrick Jelinsky , Richard Joyce , Stephen Kent , Michael Levi , Francisco Prada , Claire Poppett , David Rabinowitz , Constance Rockosi , Laia Cardiel Sas , David J. Schlegel , Michael Schubnell , Ray Sharples , Joseph H. Silber , David Sprayberry , Risa Wechsler
We describe the spectroscopic data processing pipeline of the Dark Energy Spectroscopic Instrument (DESI), which is conducting a redshift survey of about 40 million galaxies and quasars using a purpose-built instrument on the 4-m Mayall…
Instrumentation and Methods for Astrophysics · Physics
2023-03-15
J. Guy , S. Bailey , A. Kremin , Shadab Alam , D. M. Alexander , C. Allende Prieto , S. BenZvi , A. S. Bolton , D. Brooks , E. Chaussidon , A. P. Cooper , K. Dawson , A. de la Macorra , A. Dey , Biprateep Dey , G. Dhungana , D. J. Eisenstein , A. Font-Ribera , J. E. Forero-Romero , E. Gaztañaga , S. Gontcho A Gontcho , D. Green , K. Honscheid , M. Ishak , R. Kehoe , D. Kirkby , T. Kisner , Sergey E. Koposov , Ting-Wen Lan , M. Landriau , L. Le Guillou , Michael E. Levi , C. Magneville , Christopher J. Manser , P. Martini , Aaron M. Meisner , R. Miquel , J. Moustakas , Adam D. Myers , Jeffrey A. Newman , Jundan Nie , N. Palanque-Delabrouille , W. J. Percival , C. Poppett , F. Prada , A. Raichoor , C. Ravoux , A. J. Ross , E. F. Schlafly , D. Schlegel , M. Schubnell , Ray M. Sharples , Gregory Tarlé , B. A. Weaver , Christophe Yèche , Rongpu Zhou , Zhimin Zhou , H. Zou
Over several dedicated programs that include targets beyond the main cosmological samples, the Dark Energy Spectroscopic Instrument (DESI) collected spectra for 304,970 unique objects in two fields centered on the COSMOS and XMM-LSS fields.…
Cosmology and Nongalactic Astrophysics · Physics
2026-01-21
J. Ratajczak , K. S. Dawson , N. Weaverdyck , J. Aguilar , S. Ahlen , E. Armengaud , S. Bailey , D. Bianchi , D. Blanco , A. Brodzeller , D. Brooks , F. J. Castander , T. Claybaugh , A. Cuceu , A. de la Macorra , Arjun Dey , Biprateep Dey , P. Doel , A. Font-Ribera , J. E. Forero-Romero , E. Gaztañaga , S. Gontcho A Gontcho , G. Gutierrez , J. Guy , T. Hagen , H. K. Herrera-Alcantar , K. Honscheid , D. Huterer , M. Ishak , J. Jimenez , R. Joyce , S. Juneau , R. Kehoe , D. Kirkby , T. Kisner , S. E. Koposov , A. Kremin , O. Lahav , A. Lambert , C. Lamman , M. Landriau , L. Le Guillou , A. Leauthaud , J. Lee , M. E. Levi , Q. Li , I. Longhurst , Y. Luo , M. Manera , P. Martini , J. McCullough , A. Meisner , R. Miquel , J. Moustakas , S. Nadathur , J. A. Newman , N. Palanque-Delabrouille , W. J. Percival , C. Poppett , F. Prada , I. Pérez-Ràfols , A. Raichoor , C. Ravoux , G. Rossi , Y. Salcedo Hernandez , E. Sanchez , C. Saulder , D. Schlegel , M. Schubnell , H. Seo , D. Sprayberry , G. Tarlé , B. A. Weaver , R. H. Wechsler , M. White , R. Zhou , H. Zou
The recently commissioned Dark Energy Spectroscopic Instrument (DESI) will measure the expansion history of the Universe using the Baryon Acoustic Oscillation technique. The spectra of 35 million galaxies and quasars over 14000 sqdeg will…
Instrumentation and Methods for Astrophysics · Physics
2021-01-29
S. Perruchot , P. -E. Blanc , J. Guy , L. Le Guillou , S. Ronayette , X. Régal , G. Castagnoli , A. Le Van Suu , E. Sepulveda , E. Jullo , J. -G. Cuby , S. Karkar , P. Ghislain , P. Repain , P. -H. Carton , C. Magneville , A. Ealet , S. Escoffier , A. Secroun , K. Honscheid , A. Elliot , P. Jelinsky , D. Brooks , P. Doel , Y. Duan , J. Edelstein , J. C. Estrada , E. Gastañaga , A. Karcher , M. Landriau , M. Levi , P. Martini , P. , N. Palanque-Delabrouille , F. Prada , G. Tarle , K. Zhang
Accurate redshift estimates are a critical requirement for weak lensing surveys and one of the main uncertainties in constraints on dark energy and large-scale cosmic structure. In this paper, we study the potential to calibrate photometric…
Cosmology and Nongalactic Astrophysics · Physics
2025-12-23
Diana Blanco , Alexie Leauthaud , Johannes Ulf Lange , Angus H. Wright , Hendrik Hildebrandt , Sven Heydenreich , Darshika Ravulapalli , Joshua Ratajczak , Kyle S. Dawson , Jamie McCullough , Biprateep Dey , Jessica N. Aguilar , Steven Ahlen , Abhijeet Anand , Davide Bianchi , Chris Blake , David Brooks , Francisco J. Castander , Todd Claybaugh , Andrei Cuceu , Axel de la Macorra , John Della Costa , Arjun Dey , Ann Elliott , Ni Putu Audita Placida Emas , Simone Ferraro , Andreu Font-Ribera , Jaime E. Forero-Romero , Cristhian Garcia-Quintero , Enrique Gaztañaga , Satya Gontcho A Gontcho , Gaston Gutierrez , Dragan Huterer , Mustapha Ishak , Jorge Jimenez , Shahab Joudaki , Dick Joyce , Stephanie Juneau , David Kirkby , Anthony Kremin , Alex Krolewski , Claire Lamman , Martin Landriau , Laurent Le Guillou , Marc Manera , Aaron Meisner , Ramon Miquel , John Moustakas , Seshadri Nadathur , Jeffrey A. Newman , Will Percival , Anna Porredon , Francisco Prada , Ignasi Pérez-Ràfols , Amy Robertson , Graziano Rossi , Eusebio Sanchez , Christoph Saulder , Agne Semenaite , David Schlegel , Hee-Jong Seo , Joseph H. Silber , David Sprayberry , Gregory Tarlé , Benjamin A. Weaver , Rongpu Zhou , Hu Zou
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