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Dark Energy Spectroscopic Instrument

(DESI, MS-DESI, MSDESI, Mid-scale Dark Energy Spectroscopic Instrument)
(new instrument for measuring red-shift of distant objects)

The Dark Energy Spectroscopic Instrument (DESI) is a multi-object spectrograph intended to measure redshifts of luminous red galaxies, quasars, emission line galaxies, and Lyman-alpha QSOs, to create a 3D cosmological map for dark energy research. It includes 5000 fibers placed automatically using robotics. It is currently being installed in the Mayall 4m Telescope at Kitt Peak, aiming to begin a five-year survey in 2019.


(instrument,cosmology,dark energy,spectrograph,construction)
http://en.wikipedia.org/wiki/Dark_Energy_Spectroscopic_Instrument
http://desi.lbl.gov/
http://arxiv.org/pdf/1308.0847.pdf
https://lorca.sciencesconf.org/data/program/2018_09_20_spectroDESI_LORCA.pdf
WaveLFreqPhoton
Energy
  
.4μm750THz3.1eVbeginDark Energy Spectroscopic Instrument
1μm300THz1.3eVendDark Energy Spectroscopic Instrument

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