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Preliminary Target Selection for the DESI Luminous Red Galaxy (LRG) Sample
- Zhou, Rongpu;
- Newman, Jeffrey A;
- Dawson, Kyle S;
- Eisenstein, Daniel J;
- Brooks, David D;
- Dey, Arjun;
- Dey, Biprateep;
- Duan, Yutong;
- Eftekharzadeh, Sarah;
- Gaztañaga, Enrique;
- Kehoe, Robert;
- Landriau, Martin;
- Levi, Michael E;
- Licquia, Timothy C;
- Meisner, Aaron M;
- Moustakas, John;
- Myers, Adam D;
- Palanque-Delabrouille, Nathalie;
- Poppett, Claire;
- Prada, Francisco;
- Raichoor, Anand;
- Schlegel, David J;
- Schubnell, Michael;
- Staten, Ryan;
- Tarlé, Gregory;
- Yèche, Christophe
Published Web Location
https://doi.org/10.3847/2515-5172/abc0f4Abstract
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 section developed using Legacy Surveys Data Release 8 g, r, z and W1 photometry. This selection yields a sample with a uniform surface density of ∼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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