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

Rongpu Zhou, Jeffrey A. Newman, Kyle S. Dawson, Daniel J. Eisenstein, David D. Brooks, Arjun Dey, Biprateep Dey, Yutong Duan, Sarah Eftekharzadeh, Enrique Gaztañaga, Robert Kehoe, Martin Landriau (+14 others)
2020 Research Notes of the AAS  

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2020 pre-print arXiv:2010.11282v1 fatcat:idxzz3dayfcttm3hvce3hli75u
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 ∼ 600 deg^-2and very low predicted stellar contamination and redshift failure rates. During DESI Survey Validation, updated versions of this selection will be tested and optimized.
doi:10.3847/2515-5172/abc0f4 fatcat:ohoufveu7zdtxonz4ewghxuhpq
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Rongpu Zhou, Jeffrey A. Newman, Kyle S. Dawson, Daniel J. Eisenstein, David D. Brooks, Arjun Dey, Biprateep Dey, Yutong Duan, 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. "Preliminary Target Selection for the DESI Luminous Red Galaxy (LRG) Sample." Research Notes of the AAS 4.10 (2020) 181