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Overview of the Dark Energy Spectroscopic Instrument

AuthorsMartini, Paul; Bailey, Stephen; Besuner, Robert W.; Brooks, David; Doel, Peter; Edelstein, Jerry; Eisenstein, Daniel; Flaugher, Brenna; Gutierrez, Gaston; Harris, Stewart E.; Honscheid, Klaus; Jelinsky, Patrick; Joyce, Richard; Kent, Stephen; Levi, Michael; Prada, Francisco ; Poppett, Claire; Rabinowitz, David; Rockosi, Constance; Cardiel Sas, Laia; Schlegel, David J.; Schubnell, Michael; Sharples, Ray; Silber, Joseph H.; Sprayberry, David; Wechsler, Risa
KeywordsMulti-Object Spectroscopy
Fiber Spectroscopy
Fiber Positioners
Prime Focus
Mayall Telescope
Cosmic Acceleration
Dark Energy
Issue Date2018
PublisherInternational Society for Optical Engineering
CitationProceedings of SPIE - The International Society for Optical Engineering 10702: 107021F (2018)
AbstractThe 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 will be measured during the life of the experiment. A new prime focus corrector for the KPNO Mayall telescope will deliver light to 5000 fiber optic positioners. The fibers in turn feed ten broad-band spectrographs. We present an overview of the instrumentation, the main technical requirements and challenges, and the current status of the project. © 2018 SPIE.
Publisher version (URL)http://dx.doi.org/10.1117/12.2313063
Identifiersdoi: 10.1117/12.2313063
issn: 0277-786X
isbn: 978-1-5106-1958-6
Appears in Collections:(IAA) Artículos
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