Astrophysics (index)

Dark Energy Spectroscopic Instrument

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

The Dark Energy Spectroscopic Instrument (DESI) is an instrument aimed to get Redshifts (z) of luminous red galaxies (LRG), Quasars (QSO), emission line galaxies (ELG), and Lyman-alpha QSOs, to create a 3D Cosmological map for Dark Energy research. It is currently under construction, for installation in the Mayall 4m telescope at Kitt Peak in 2018 for data collection until 2022.


(instrument,cosmology,dark energy,spectrograph,construction)
http://desi.lbl.gov/
http://arxiv.org/pdf/1308.0847.pdf
WaveLFreqPhoton
Energy
  
.4um750THz3.1eVbeginDark Energy Spectroscopic Instrument
1um300THz1.3eVendDark Energy Spectroscopic Instrument

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