preprintarXiv (Cornell University)Oct 31, 2016GREEN OA

The DESI Experiment Part I: Science,Targeting, and Survey Design

DCDESI CollaborationAAAmir AghamousaAJAguilar, JessicaSASteve AhlenSAShadab Alam

Korea Astronomy and Space Science Institute · University of California, Berkeley · +43 more institutions

Indexed inarxivdatacite

Abstract

DESI (Dark Energy Spectroscopic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations (BAO) and the growth of structure through redshift-space distortions with a wide-area galaxy and quasar redshift survey. To trace the underlying dark matter distribution, spectroscopic targets will be selected in four classes from imaging data. We will measure luminous red galaxies up to $z=1.0$. To probe the Universe out to even higher redshift, DESI will target bright [O II] emission line galaxies up to $z=1.7$. Quasars will be targeted both as direct tracers of the underlying dark matter distribution and, at higher redshifts ($ 2.1 < z < 3.5$), for the Ly-$α$…

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Topics & keywords

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Keywords
  • Physics
  • Redshift
  • Astrophysics
  • Quasar
  • Galaxy
  • Dark energy
  • Astronomy
  • Baryon acoustic oscillations
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