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Massively parallel multi-object spectrographs are on the leading edge of cosmology instrumentation. The highly successful Dark Energy Spectroscopic Instrument (DESI) which begun survey operations in May 2021, for example, has 5,000…
Instrumentation and Methods for Astrophysics · Physics
2022-12-16
Joseph H. Silber , David J. Schlegel , Ricardo Araujo , Charles Baltay , Robert W. Besuner , Emily Farr , Julien Guy , Jean-Paul Kneib , Claire Poppett , Travis A. Mandeville , Michael Schubnell , Markus Thurneysen , Sarah Tuttle
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
Massive spectroscopic survey are becoming trendy in astrophysics and cosmology, as they can address new fundamental knowledge such as Galactic Archaeology and probe the nature of the mysterious Dark Energy. To enable massive spectroscopic…
Instrumentation and Methods for Astrophysics · Physics
2015-06-23
N. Fahim , F. Prada , J. P. Kneib , J. Sánchez , P. Hórler , M. Azzaro , S. Becerril , H. Bleuler , M. Bouri , J. Castano , J. Garrido , D. Gillet , G. Glez-de-Rivera , C. Gómez , M. A. Gómez , A. Gonzalez-Arroyo , L. Jenni , L. Makarem , G. Yepes , X. Arrillaga , MA. Carrera , R. Diego , M. Charif , M. Hug , C. Lachat
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
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
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
Kai Zhang , Joseph H. Silber , Henry D. Heetderks , Daniela Leitner , Michael Schubnell , Michael Levi , Gradey Wang , Kevin Fanning , Parker Fagrelius , Carl Dobson , Jessica Aguilar
In the large-scale, Dark Energy Spectroscopic Instrument (DESI), thousands of fiber positioners will be used. Those are robotic positioners, with two axis, and having the size of a pen. They are tightly packed on the focal plane of the…
Instrumentation and Methods for Astrophysics · Physics
2015-06-23
Laurent Jenni , Philipp Hörler , Laleh Makarem , Jean-Paul Kneib , Denis Gillet , Hannes Bleuler , Mohamed Bouri , Francisco Prada , Guillermo De Rivera , Justo Sanchez
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
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
Collision Avoidance in Next-generation Fiber Positioner Robotic System for Large Survey Spectrograph
Some of the next generation massive spectroscopic survey projects, such as DESI and PFS, plan to use thousands of fiber positioner robots packed at a focal plane to quickly move in parallel the fiber-ends from the previous to the next…
Instrumentation and Methods for Astrophysics · Physics
2015-06-18
Laleh Makarem , Jean-Paul Kneib , Denis Gillet , Hannes Bleuler , Mohamed Bouri , Laurent Jenni , Francisco Prada , Justo Sanchez
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
Highly-multiplexed, robotic, fiber-fed spectroscopic surveys are observing tens of millions of stars and galaxies. For many systems, accurate positioning relies on imaging the fibers in the focal plane and feeding that information back to…
Instrumentation and Methods for Astrophysics · Physics
2025-02-14
E. F. Schlafly , J. Guy , K. Honscheid , S. Kent , S. E. Koposov , J. Aguilar , S. Ahlen , S. Bailey , D. Brooks , T. Claybaugh , K. Dawson , P. Doel , K. Fanning , D. P. Finkbeiner , A. Font-Ribera , J. E. Forero-Romero , S. Gontcho A Gontcho , G. Gutierrez , D. Kirkby , T. Kisner , A. Kremin , J. Lasker , M. Landriau , L. Le Guillou , M. E. Levi , A. de la Macorra , P. Martini , A. Meisner , R. Miquel , J. Moustakas , G. Niz , F. Prada , G. Rossi , E. Sanchez , M. Schubnell , R. Sharples , D. Sprayberry , G. Tarlé , B. A. Weaver , H. Zou
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 existence, properties, and dynamics of the dark sectors of our universe pose fundamental challenges to our current model of physics, and large-scale astronomical surveys may be our only hope to unravel these long-standing mysteries. In…
Cosmology and Nongalactic Astrophysics · Physics
2025-05-09
Robert Besuner , Arjun Dey , Alex Drlica-Wagner , Haruki Ebina , Guillermo Fernandez Moroni , Simone Ferraro , Jaime Forero-Romero , Klaus Honscheid , Pat Jelinsky , Dustin Lang , Michael Levi , Paul Martini , Adam Myers , Nathalie Palanque-Delabrouille , Swayamtrupta Panda , Claire Poppett , Noah Sailer , David Schlegel , Arman Shafieloo , Joseph Silber , Martin White , Timothy Abbott , Lori Allen , Santiago Avila , Roberto Avilés , Stephen Bailey , Abby Bault , Mohamed Bouri , Konstantina Boutsia , Eienne Burtin , Fernando Chierchie , William Coulton , Kyle Dawson , Biprateep Dey , Olivier Doré , Patrick Dunlop , Daniel Eisenstein , Castorina Emanuele , Stephanie Escoffier , Juan Estrada , Parker Fagrelius , Kevin Fanning , Timothy Fanning , Andreu Font-Ribera , Joshua Frieman , Malak Galal , Vera Gluscevic , Satya Gontcho A Gontcho , Daniel Green , Gaston Gutierrez , Julien Guy , Kevan Hashemi , Steve Heathcote , Steve Holland , Jiamin Hou , Dragan Huterer , Blas Irigoyen Gimenez , Mikhail Ivanov , Richard Joyce , Eric Jullo , Stephanie Juneau , Claire Juramy , Armin Karcher , Stephen Kent , David Kirkby , Jean-Paul Kneib , Elisabeth Krause , Alex Krolewski , Ofer Lahav , Agustin Lapi , Alexie Leauthaud , Matthew Lewandowski , Ting Li , Kenneth Lin , Marilena Loverde , Sean MacBride , Christophe Magneville , Jennifer Marshall , Patrick McDonald , Timothy Miller , John Moustakas , Moritz Münchmeyer , Joan Najita , Jeff Newman , Will Percival , Oliver Philcox , Priscila Pires , Anand Raichoor , Brandon Roach , Constance Rockosi , Maxime Rombach , Ashley Ross , Eusebio Sanchez , Luke Schmidt , Michael Schubnell , Rebekah Sebok , Uros Seljak , Eva Silverstein , Zachay Slepian , Chris Stone , Robert Stupak , Gregory Tarlé , Ting Li , Luke Tyas , Mariana Vargas-Magaña , Alistair Walker , Nicholas Wenner , Christophe Yèche , Yuanyuan Zhang , Rongpu 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
Small-pitch populated focal planes are essential enabling technologies for the next generation of highly multiplexed astronomical instruments. As modern astrophysics relies on massive spectroscopic surveys to study dark energy, dark matter,…
Instrumentation and Methods for Astrophysics · Physics
2026-05-28
Malak Galal , Maxime Rombach , Jonathan Wei , Oliver Pineda Suárez , Ricardo Araújo , Sébastien Pernecker , Abby Bault , Joseph Harry Silber , Nicholas Wenner , Robert Besuner , David Kirkby , William Van Shourt , Stefane Caseiro , Corentin Magnenat , Yves Moser , Yasuyuki Kobayashi , Eri Fukushima , Satoshi Sonoda , Ayumu Suto , David Schlegel , Jean-Paul Kneib
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