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Preliminary Target Selection for the DESI Luminous Red Galaxy (LRG) Sample

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arxiv 2010.11282 v1 pith:SXEYGIVV submitted 2020-10-21 astro-ph.CO

Rongpu Zhou , Jeffrey A. Newman , Kyle S. Dawson , Daniel J. Eisenstein , David D. Brooks , Arjun Dey , Biprateep Dey , Yutong Duan
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Sarah Eftekharzadeh Enrique Gaztañaga Robert Kehoe Martin Landriau Michael E. Levi Timothy C. Licquia Aaron M. Meisner John Moustakas Adam D. Myers Nathalie Palanque-Delabrouille Claire Poppett Francisco Prada Anand Raichoor David J. Schlegel Michael Schubnell Ryan Staten Gregory Tarlé Christophe Yèche
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keywords desiselectionluminouspreliminaryredshiftsamplesurveytarget
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abstract

The DESI survey will observe more than 8 million candidate luminous red galaxies (LRGs) in the redshift range $0.3<z<1.0$. Here we present a preliminary version of the DESI LRG target selection developed using Legacy Surveys Data Release 8 $g$, $r$, $z$ and $W1$ photometry. This selection yields a sample with a uniform surface density of ${\sim}\,600$ deg$^{-2}$and very low predicted stellar contamination and redshift failure rates. During DESI Survey Validation, updated versions of this selection will be tested and optimized.

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Cited by 4 Pith papers

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