SDSS Galaxies (SDSS galaxies as imaged by DESI)

这是一个包含 306,006 个星系的数据集，其坐标取自 Sloan Digital Sky Survey Data Release 7 以及来自 Brinchmann+2003 和 Wilman+2010 的修改目录。该体积完整样本的 r 波段绝对幅度限制为 $M_r\leq-20$，红移限制为 $z\leq0.08$。有关详细信息，请参阅 Arora+2019。该目录涵盖了从集群到组和现场系统的广泛环境。星系图像取自暗能量光谱仪，包含 $g$、$r$ 和 $z$ 波段。

This is a dataset containing 306,006 galaxies, whose coordinates are sourced from Sloan Digital Sky Survey Data Release 7 and modified catalogs from Brinchmann et al. 2003 and Wilman et al. 2010. This volume-limited sample has an r-band absolute magnitude limit of $M_r leq -20$ and a redshift limit of $z leq 0.08$. For further details, please refer to Arora et al. 2019. This catalog covers a wide range of environments, from clusters, groups to field systems. Galaxy images of this dataset are obtained from the Dark Energy Spectroscopic Instrument, covering the g, r, and z photometric bands.

搜集汇总

背景与挑战

背景概述

该数据集包含306,006个星系，其坐标基于Sloan Digital Sky Survey Data Release 7及相关修改目录，并设定了r波段绝对幅度和红移限制。星系图像由暗能量光谱仪采集，涵盖g、r和z波段。