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DOE OSTI · 1713299

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
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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. In this work, 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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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. 2020-10-15. Preliminary Target Selection for the DESI Luminous Red Galaxy (LRG) Sample. https://doi.org/10.3847/2515-5172%2Fabc0f4

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