activity
20242026
collaborators

5 papers

astro-ph.GA2026

CO(7-6) and [C I](2-1) survey in z > 6 quasars

Fuxiang Xu, Roberto Decarli, Ran Wang +13

High-redshift () quasars trace the earliest supermassive black holes and intense star formation, offering key laboratories for black hole-galaxy evolution at cosmic dawn…

astro-ph.GA2025

Disturbed cold gas in galaxy and structure formation

Siwei Zou, Robert A. Simcoe, Patrick Petitjean +18

Cold and cool gas (T K) in the circumgalactic medium (CGM) and its interaction with galaxies remain poorly understood. Simulations predict that cold gas flows into gala…

astro-ph.GA2025

(SHERRY) JCMT-SCUBA2 High Redshift Bright Quasar Survey -- II: the environment of z~6 quasars in sub-millimeter band

Qiong Li, Ran Wang, Xiaohui Fan +14

The formation of the first supermassive black holes is expected to have occurred in some most pronounced matter and galaxy overdensities in the early universe. We have conducted a…

astro-ph.GA2025

The SUPERCOLD-CGM survey: II. [\ion{C}{1}] emission and the physical conditions of cold gas in Enormous Ly nebulae at

Jianan Li, Bjorn H. C. Emonts, Zheng Cai +13

We report ALMA and ACA observations of atomic carbon ([\ion{C}{1}]) and dust continuum in 10 Enormous Ly Nebulae hosting ultra-luminous Type-I QSOs at , as pa…

astro-ph.GA2024

Constraining the excitation of molecular gas in Two Quasar-Starburst Systems at

Fuxiang Xu, Ran Wang, Jianan Li +15

We present NOrthern Extended Millimeter Array observations of CO(8-7), (9-8), and (10-9) lines, as well as the underlying continuum for two far-infrared luminous quasars: SDSS J205…