Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument

Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, los autores pertenecientes a la UAM y el nombre del grupo de colaboración, si lo hubiere

Bibliographic Details
Authors: Abareshi, B., Aguilar, J., González Pérez, Violeta, González de Rivera Peces, Guillermo José, DESI Collaboration
Format: article
Publication Date:2022
Country:España
Institution:Universidad Autónoma de Madrid
Repository:Biblos-e Archivo. Repositorio Institucional de la UAM
Language:English
OAI Identifier:oai:repositorio.uam.es:10486/711096
Online Access:http://hdl.handle.net/10486/711096
https://dx.doi.org/10.3847/1538-3881/ac882b
Access Level:Open access
Keyword:Dark energy
Spectroscopy
Astronomical instrumentation
Spectrometers
Optical telescopes
Telecomunicaciones
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spelling Overview of the Instrumentation for the Dark Energy Spectroscopic InstrumentAbareshi, B.Aguilar, J.González Pérez, VioletaGonzález de Rivera Peces, Guillermo JoséDESI CollaborationDark energySpectroscopyAstronomical instrumentationSpectrometersOptical telescopesTelecomunicacionesArtículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, los autores pertenecientes a la UAM y el nombre del grupo de colaboración, si lo hubiereThe Dark Energy Spectroscopic Instrument (DESI) embarked on an ambitious 5 yr survey in 2021 May to explore the nature of dark energy with spectroscopic measurements of 40 million galaxies and quasars. DESI will determine precise redshifts and employ the baryon acoustic oscillation method to measure distances from the nearby universe to beyond redshift z > 3.5, and employ redshift space distortions to measure the growth of structure and probe potential modifications to general relativity. We describe the significant instrumentation we developed to conduct the DESI survey. This includes: a wide-field, 3fdg2 diameter prime-focus corrector; a focal plane system with 5020 fiber positioners on the 0.812 m diameter, aspheric focal surface; 10 continuous, high-efficiency fiber cable bundles that connect the focal plane to the spectrographs; and 10 identical spectrographs. Each spectrograph employs a pair of dichroics to split the light into three channels that together record the light from 360–980 nm with a spectral resolution that ranges from 2000–5000. We describe the science requirements, their connection to the technical requirements, the management of the project, and interfaces between subsystems. DESI was installed at the 4 m Mayall Telescope at Kitt Peak National Observatory and has achieved all of its performance goals. Some performance highlights include an rms positioner accuracy of better than 0farcs1 and a median signal-to-noise ratio of 7 of the [O ii] doublet at 8 × 10−17 erg s−1 cm−2 in 1000 s for galaxies at z = 1.4–1.6. We conclude with additional highlights from the on-sky validation and commissioning, key successes, and lessons learned.IOPDepartamento de Física TeóricaDepartamento de Tecnología Electrónica y de las ComunicacionesFacultad de CienciasEscuela Politécnica Superior20222022-10-20research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/711096https://dx.doi.org/10.3847/1538-3881/ac882breponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7110962026-06-23T12:46:27Z
dc.title.none.fl_str_mv Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument
title Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument
spellingShingle Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument
Abareshi, B.
Dark energy
Spectroscopy
Astronomical instrumentation
Spectrometers
Optical telescopes
Telecomunicaciones
title_short Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument
title_full Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument
title_fullStr Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument
title_full_unstemmed Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument
title_sort Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument
dc.creator.none.fl_str_mv Abareshi, B.
Aguilar, J.
González Pérez, Violeta
González de Rivera Peces, Guillermo José
DESI Collaboration
author Abareshi, B.
author_facet Abareshi, B.
Aguilar, J.
González Pérez, Violeta
González de Rivera Peces, Guillermo José
DESI Collaboration
author_role author
author2 Aguilar, J.
González Pérez, Violeta
González de Rivera Peces, Guillermo José
DESI Collaboration
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Física Teórica
Departamento de Tecnología Electrónica y de las Comunicaciones
Facultad de Ciencias
Escuela Politécnica Superior
dc.subject.none.fl_str_mv Dark energy
Spectroscopy
Astronomical instrumentation
Spectrometers
Optical telescopes
Telecomunicaciones
topic Dark energy
Spectroscopy
Astronomical instrumentation
Spectrometers
Optical telescopes
Telecomunicaciones
description Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, los autores pertenecientes a la UAM y el nombre del grupo de colaboración, si lo hubiere
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-10-20
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/711096
https://dx.doi.org/10.3847/1538-3881/ac882b
url http://hdl.handle.net/10486/711096
https://dx.doi.org/10.3847/1538-3881/ac882b
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IOP
publisher.none.fl_str_mv IOP
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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