activity
20242026
most citedImproving Galaxy Cluster Selection with the Outskirt Stellar Mass of Galaxies

3 citations · 3 across the 6 of their papers we have counts for

collaborators

8 papers

astro-ph.GA2026

The 1.6 bump as a diagnostic of TP-AGB contributions and recent quenching. I. Insights from stellar population models

Pengjun Lu, Song Huang, Shiying Lu +3

The 1.6 bump arises from a minimum in the opacity of the negative hydrogen ion in cool stellar atmospheres. Although it is recognized as a common feature…

astro-ph.GA2026

The Connection between Halo Assembly History and the Stellar Distribution I: The Central Stellar Mass - Richness Plane

Shuo Xu, Song Huang, Alexie Leauthaud +4

Recent observations suggest intrinsic links between the stellar components of massive halos and their assembly histories. Using massive halos with $\log[M_{\rm halo}/M_\odot] \geq…

astro-ph.CO2026

Cluster finding with outskirt stellar masses and percolation

Pablo Avalos, Conghao Zhou, Tesla Jeltema +5

The abundance of galaxy clusters is a powerful cosmological probe, but optical cluster cosmology is limited by selection systematics, in particular the projection effects that affe…

astro-ph.GA2026

The First Systematic Survey of Stellar Halos in High-Inclination Galaxies Reveals Unusually Quiescent Merger Histories of Nearby Galaxies

Bojun Tao, Hong-Xin Zhang, Wenting Wang +8

Stellar halos are the only major stellar component of disk galaxies that lack systematic observational characterization, yet they encode critical information about galaxy merger hi…

astro-ph.GA2025

Reaching for the Edge II: Stellar Halos out to Large Radii as a Tracer of Dark Matter Halo Mass

Katya Leidig, Benedikt Diemer, Song Huang +3

The diffuse outskirts of brightest cluster galaxies (BCGs) encode valuable information about the assembly history and mass of their host dark matter halos. However, the low surface…

astro-ph.GA2025

Testing the Stellar Feedback-driven Breathing Mode in Low-mass Galaxies with Gas Kinematics

Yifei Luo, Joseph Wick, Alexie Leauthaud +7

Hydrodynamic simulations have proposed that stellar feedback and bursty star-formation can produce dark matter cores in low-mass galaxies. A key prediction is that feedback-driven…

astro-ph.CO2025

Relationship between 2D and 3D Galaxy Stellar Mass and Correlations with Halo Mass

Conghao Zhou, Alexie Leauthaud, Shuo Xu +8

Recent studies suggest that the stars in the outer regions of massive galaxies trace halo mass better than the inner regions and that an annular stellar mass provides a low scatter…

astro-ph.CO2024★ 3 cited

Improving Galaxy Cluster Selection with the Outskirt Stellar Mass of Galaxies

Matthew Kwiecien, Tesla Jeltema, Alexie Leauthaud +53

The number density and redshift evolution of optically selected galaxy clusters offer an independent measurement of the amplitude of matter fluctuations, . However, recent res…