Performance of the Dark Energy Spectroscopic Instrument (DESI) fiber system

13 December 2020 Performance of the Dark Energy Spectroscopic Instrument (DESI) fiber system

Proceedings Volume 11447, Ground-based and Airborne Instrumentation for Astronomy VIII; 1144711 (2020) https://doi.org/10.1117/12.2562565
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Abstract

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 sq deg will be measured during the life of the experiment. A new prime focus corrector for the KPNO Mayall telescope delivers light to 5000 fiber optic positioners. The fibers in turn feed ten broad-band spectrographs. We describe key aspects and lessons learned from the development, delivery and installation of the fiber system at the Mayall telescope.

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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, Yutong Duan, Gregory Tarle, Erique Gaztañaga, and Francisco Prada "Performance of the Dark Energy Spectroscopic Instrument (DESI) fiber system", Proc. SPIE 11447, Ground-based and Airborne Instrumentation for Astronomy VIII, 1144711 (13 December 2020); https://doi.org/10.1117/12.2562565

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