335 citations · 3.5k across the 72 of their papers we have counts for
9 papers · 1 filter
Massive Black Hole Mergers with Orbital Information: Predictions from the ASTRID Simulation
Nianyi Chen, Yueying Ni, A. Miguel Holgado +6
We examine massive black hole (MBH) mergers and their associated gravitational wave signals from the large-volume cosmological simulation Astrid. Astrid includes galaxy formation a…
Dual AGN in the Horizon-AGN simulation and their link to galaxy and massive black hole mergers, with an excursus on multiple AGN
Marta Volonteri, Hugo Pfister, Ricarda Beckmann +5
The occurrence of dual active galactic nuclei (AGN) on scales of a few tens of kpc can be used to study merger-induced accretion on massive black holes (MBHs) and to derive clues o…
The ASTRID simulation: the evolution of Supermassive Black Holes
Yueying Ni, Tiziana Di Matteo, Simeon Bird +6
We present the evolution of black holes (BHs) and their relationship with their host galaxies in Astrid, a large-volume cosmological hydrodynamical simulation with box size 250 $h^…
What's in a name? Quantifying the interplay between the Definition, Orientation, and Shape of Ultra-diffuse Galaxies Using the Romulus Simulations
Jordan D. Van Nest, F. Munshi, A. C. Wright +4
We explore populations of ultra-diffuse galaxies (UDGs) in isolated, satellite, and cluster environments using the Romulus25 and RomulusC simulations, including how the populations…
Unveiling the Population of Wandering Black Holes via Electromagnetic Signatures
Angelo Ricarte, Michael Tremmel, Priyamvada Natarajan +1
While most galaxies appear to host a central supermassive black hole (SMBH), they are expected to also contain a substantial population of off-center "wandering" SMBHs naturally pr…
The Impact of Cosmic Rays on the Kinematics of the Circumgalactic Medium
Iryna S. Butsky, Jessica K. Werk, Kirill Tchernyshyov +9
We use hydrodynamical simulations of two Milky Way-mass galaxies to demonstrate the impact of cosmic-ray pressure on the kinematics of cool and warm circumgalactic gas. Consistent…
Dynamical Friction Modeling of Massive Black Holes in Cosmological Simulations and Effects on Merger Rate Predictions
Nianyi Chen, Yueying Ni, Michael Tremmel +4
In this work we establish and test methods for implementing dynamical friction for massive black hole pairs that form in large volume cosmological hydrodynamical simulations which…
Origins and Demographics of Wandering Black Holes
Angelo Ricarte, Michael Tremmel, Priyamvada Natarajan +2
We characterise the population of wandering black holes, defined as those physically offset from their halo centres, in the Romulus cosmological simulations. Unlike most other curr…
The Origins of Off-Centre Massive Black Holes in Dwarf Galaxies
Jillian M. Bellovary, Sarra Hayoune, Katheryn Chafla +9
Massive black holes often exist within dwarf galaxies, and both simulations and observations have shown that a substantial fraction of these may be off-center with respect to their…