activity
20032025
most citedA Unified, Merger-Driven Model for the Origin of Starbursts, Quasars, the Cosmic X-Ray Background, Supermassive Black Holes and Galaxy Spheroids

1.9k citations · 5.4k across the 24 of their papers we have counts for

collaborators

24 papers

astro-ph.GA2025★ 1 cited

The Gravitational Wave Background from Massive Black Holes in the ASTRID Simulation

Nianyi Chen, Tiziana Di Matteo, Yihao Zhou +6

Recent pulsar timing array (PTA) observations have detected nanohertz gravitational waves, likely originating from massive black hole binaries (MBHBs). The detected amplitude is un…

astro-ph.GA2024

MAGICS III. Seeds sink swiftly: nuclear star clusters dramatically accelerate seed black hole mergers

Diptajyoti Mukherjee, Yihao Zhou, Nianyi Chen +2

Merger rate predictions of Massive Black Hole (MBH) seeds from large-scale cosmological simulations differ widely, with recent studies highlighting the challenge of low-mass MBH se…

astro-ph.GA2024★ 1 cited

The Astrid Simulation: Evolution of black holes and galaxies to z=0.5 and different evolution pathways for galaxy quenching

Yueying Ni, Nianyi Chen, Yihao Zhou +5

We present new results from the ASTRID simulation from to , covering the epoch of cosmic noon. The galaxy stellar mass function, as well as the black hole mass and lum…

astro-ph.GA2022★ 12 cited

Ultramassive black holes formed by triple quasar mergers at

Yueying Ni, Tiziana DiMatteo, Nianyi Chen +2

The origin of rare and elusive ultramassive black holes (UMBH, with MBH > 1e10 Msun) is an open question. Using the large volume cosmological hydrodynamic simulation ASTRID, we rep…

astro-ph.GA2021★ 3 cited

The Diversity of Environments Around Luminous Quasars at Redshift

Keven Ren, Michele Trenti, Madeline A. Marshall +2

Significant clustering around the rarest luminous quasars is a feature predicted by dark matter theory combined with number density matching arguments. However, this expectation is…

astro-ph.GA2020★ 13 cited

Stochastic Processes as the Origin of the Double-Power Law Shape of the Quasar Luminosity Function

Keven Ren, Michele Trenti, Tiziana Di Matteo

The Quasar Luminosity Function (QLF) offers insight into the early co-evolution of black holes and galaxies. It has been characterized observationally up to redshift with…