SMUDGes. III. The Southern catalog

We present a catalog of 5598 ultra-diffuse galaxy (UDG) candidates with effective radius r_e_>5.3" distributed throughout the southern portion of the DESI Legacy Imaging...本研究构建了包含5598个超弥散星系（ultra-diffuse galaxy, UDG）候选体的星表，这些候选体的有效半径$r_e$大于5.3角秒，分布于DESI遗产成像巡天的南部天区。