activity
20062026
most citedGalaxy Groups in the SDSS DR4: II. halo occupation statistics

333 citations · 914 across the 19 of their papers we have counts for

collaborators

18 papers

astro-ph.CO2026

CSST large-scale structure analysis pipeline: IV. Cosmic Voids Identified from Galaxy Group Samples as Probes of the Large-scale Structure

Yingxiao Song, Xiaohu Yang, Yan Gong +16

Because groups are directly associated with halos, they allow for considerably simpler theoretical modeling than approaches based on individual galaxies. We therefore propose to us…

astro-ph.GA2026

Quantifying Environmental Effects on Galaxy Properties using Non-spherical Voids Identified from SDSS DR7

Yingxiao Song, Xiaohu Yang, Yan Gong +4

Cosmic voids provide a distinct low-density region for studying the environmental effects of galaxy properties. Using the SDSS DR7 catalog, we identify non-spherical voids via Voro…

astro-ph.GA2026

What can galaxy clustering really tell us about the galaxy-halo connections?

Xiaoju Xu, Xiaohu Yang, Zhongxu Zhai +6

Subhalo abundance matching (SHAM) is a commonly used framework for modeling the galaxy-halo connection. Yet, its standard implementation has difficulty reproducing the observed gal…

astro-ph.GA2026

The Sinking Statistics of Dark Matter Subhalos Across Hierarchical Levels

Wenkang Jiang, Jiaxin Han, Kun Xu +6

We investigate the mergers among subhalos in a CDM simulation, focusing on two fundamental aspects overlooked by previous studies: 1) how to identify mergers robustly; 2) the st…

astro-ph.GA2026

Galaxy populations in groups and clusters-II. Conditional luminosity functions at redshifts from z~1 to z~0

Ce Gao, Cheng Li, Houjun Mo +5

Using DESI SV3 spectroscopic group centrals and HSC photometric data, we measure conditional luminosity functions (CLFs) of central and satellite galaxies for red and blue populati…

astro-ph.GA2026

The stellar-to-halo mass relation of central galaxies across three orders of halo mass

Victoria Toptun, Paola Popesso, Ilaria Marini +9

The stellar content of galaxies is tightly connected to the mass and growth of their host dark matter halos. Observational constraints on this relation remain limited, particularly…