activity
20232026
most citedThe evolution of galaxy morphology from redshift z=6 to 3: Mock JWST observations of galaxies in the ASTRID simulation

12 citations · 43 across the 19 of their papers we have counts for

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15 papers · 1 filter

astro-ph.GA2026

The lifetimes and properties of Little Red Dots in the AMBRA simulation

Patrick LaChance, Yihao Zhou, Aklant Kumar Bhowmick +6

We identify and analyze the little red dots (LRDs) in the AMBRA cosmological hydrodynamic simulation, by producing mock observations of the galaxies and active galactic nuclei (AGN…

astro-ph.GA2026

The Galaxy Luminosity Functions in ASTRID: Predictions for LSST

Fatemeh Hafezianzadeh, Tianqing Zhang, Paul Rogozenski +6

We present validated and forward-modelled galaxy luminosity functions and photometric predictions for the Vera C. Rubin Observatory Legacy Survey of Space and Time using the ASTRID…

astro-ph.GA2026

Matter Clustering in Astrid: Reduced Baryonic Suppression from Realistic Black Hole Dynamics

Yanhui Yang, Simeon Bird, Yihao Zhou +4

Baryonic feedback from active galactic nuclei (AGN) is often invoked as a major source of suppression in the matter power spectrum, with implications for precision cosmology and th…

astro-ph.GA2026

First results of AMBRA: Abundant Seeds and Early Mergers as a Pathway to the First Massive Black Holes

Yihao Zhou, Aklant Kumar Bhowmick, Tiziana Di Matteo +6

AMBRA combines the large cosmological volume and statistical power of ASTRID with the physically motivated gas-based black hole seeding models from BRAHMA. Motivated by JWST's disc…

astro-ph.GA2025

Connecting current and future dual AGN searches to LISA and PTA gravitational wave detections

Nianyi Chen, Yihao Zhou, Ekaterine Dadiani +10

Dual active galactic nuclei (DAGN) mark an observable stage of massive black hole (MBH) pairing in galaxy mergers and are precursors to the MBH binaries that generate low-frequency…

astro-ph.GA2025

From ASTRID to BRAHMA -- The role of overmassive black holes in little red dots in cosmological simulations

Patrick LaChance, Aklant Kumar Bhowmick, Rupert A. C. Croft +8

We leverage the overmassive black holes () present in a realization of the BRAHMA cosmological hydrodynamic simulation suite to investigate their ro…

astro-ph.GA2025★ 8 cited

The ASTRID Simulation at z=0: From Massive Black Holes to Large-scale Structure

Yihao Zhou, Tiziana Di Matteo, Simeon Bird +7

We present the results for the cosmological simulation ASTRID. Hosting 0.33 trillion particles in a box of per side, ASTRID is one o…

astro-ph.GA2025★ 7 cited

Gravitational Waves from Massive Black Hole Mergers in ASTRID: Predictions for LISA

Bonny Y. Wang, Yihao Zhou, William Chen +5

We use the ASTRID cosmological simulation to forecast massive black hole (MBH) mergers detectable by Laser Interferometer Space Antenna (LISA) down to . ASTRID directly models…

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.GA2025

Central Cluster Galaxies: A Hotspot for Detectable Gravitational Waves from Black Hole Mergers

Yihao Zhou, Tiziana Di Matteo, Nianyi Chen +6

After Pulsar Timing Arrays (PTAs) have announced the evidence for a low-frequency gravitational wave background (GWB), the continuous waves (CWs) are the next anticipated gravitati…

astro-ph.GA2024

MAGICS II. Seed black holes stripped of their surrounding stars do not sink

Yihao Zhou, Diptajyoti Mukherjee, Nianyi Chen +7

MBH seed mergers are expected to be among the loudest sources of gravitational waves detected by the Laser Interferometer Space Antenna (LISA), providing a unique window into the b…

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.GA2024★ 12 cited

The evolution of galaxy morphology from redshift z=6 to 3: Mock JWST observations of galaxies in the ASTRID simulation

Patrick LaChance, Rupert Croft, Yueying Ni +3

We present mock JWST observations for more than 250,000 different galaxies from the Astrid simulation with . The mock observations are made using the BPASS stellar…

astro-ph.GA2023★ 2 cited

z~2 dual AGN host galaxies are disky: stellar kinematics in the ASTRID Simulation

Ekaterine Dadiani, Tiziana Di Matteo, Nianyi Chen +6

We study dual AGN host galaxy morphologies at using the ASTRID simulation, selecting black hole (BH) pairs with small separation (), high mass ($M_{\text{BH,12…

astro-ph.GA2023★ 2 cited

MAGICS I. The First Few Orbits Encode the Fate of Seed Massive Black Hole Pairs

Nianyi Chen, Diptajyoti Mukherjee, Tiziana Di Matteo +3

The elusive massive black hole (MBH) seeds stand to be revealed by the Laser Space Antenna Interferometer through mergers. As an aftermath of galaxy mergers, MBH coalescence is a v…