An Extended Halo-based Group/Cluster Finder: Application to the DESI Legacy Imaging Surveys DR8

• Published in: The Astrophysical journal Vol. 909; no. 2; p. 143
• Main Authors: Yang, Xiaohu, Xu, Haojie, He, Min, Gu, Yizhou, Katsianis, Antonios, Meng, Jiacheng, Shi, Feng, Zou, Hu, Zhang, Youcai, Liu, Chengze, Wang, Zhaoyu, Dong, Fuyu, Lu, Yi, Li, Qingyang, Chen, Yangyao, Wang, Huiyuan, Mo, Houjun, Fu, Jian, Guo, Hong, Leauthaud, Alexie, Luo, Yu, Zhang, Jun, Zu, Ying
• Format: Journal Article
• Language: English
• Published: Philadelphia IOP Publishing 01.03.2021
• Subjects: Astronomy & Astrophysics; Astrophysics; Galaxies; Halos; Polls & surveys; Red shift

We extend the halo-based group finder developed by Yang et al. (2005c) to use data simultaneously with either photometric or spectroscopic redshifts. A mock galaxy redshift survey constructed from a high-resolution N -body simulation is used to evaluate the performance of this extended group finder....