3 papers
astro-ph.GA2025
Cold Gas Infall onto A Brightest Group Galaxy via A Gas-Rich Minor Merger
Ming-Yang Zhuang, Jinyi Shangguan, Yuan Bian +6
Dust and cold gas are not uncommon in nearby early-type galaxies (ETGs), and represent an important aspect of their evolution. However, their origin has been debated for decades. P…
astro-ph.GA2025
Beyond Morphology: Challenges in Decomposing Massive Stellar Halos in Sombrero-like, Halo-Embedded Disk Galaxies
Wu-Tao He, Min Du, Zhao-Yu Li +1
Sombrero-like galaxies exhibit unique structural properties that challenge traditional photometric decomposition methods. In this study, we investigate their structural differences…
astro-ph.GA2025
The Origin of the Gas and Its Low Star Formation Efficiency in Quiescent Galaxies
Yang A. Li, Luis C. Ho, Jinyi Shangguan +2
Quiescent galaxies (QGs) typically have little cold gas to form stars. The discovery of gas-rich QGs challenges our conventional understanding of the evolutionary paths of galaxies…