论文标题
DESI发光红色星系（LRG）样品的初步目标选择
Preliminary Target Selection for the DESI Luminous Red Galaxy (LRG) Sample
论文作者
论文摘要
DESI调查将在红移范围内观察到超过800万个候选发光红星系（LRGS）$ 0.3 <z <1.0 $。在这里，我们提出了使用传统调查数据版本8 $ g $，$ r $，$ z $和$ w1 $ photomemery开发的DESI LRG目标选择的初步版本。此选择产生的样品具有均匀的表面密度为$ {\ sim} \，600 $ deg $^{ - 2} $以及非常低的预测出色的恒星污染和红移故障率。在DESI调查验证期间，将测试和优化此选择的更新版本。
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.
