50 citations · 178 across the 13 of their papers we have counts for
12 papers
Perturber-Driven Dynamics of Supermassive Black Hole Binaries in Galaxy Merger
Julian Chan, Alessia Gualandris, Walter Dehnen +1
The orbital eccentricity of massive black hole binaries (MBHBs) at binary formation shapes the stochastic gravitational-wave background (GWB) detectable by pulsar timing arrays (PT…
Scaling Relations for Binary Black Hole Merger Times from Cosmological Initial Conditions
Thibaut L. Francois, Alessia Gualandris, Walter Dehnen
Recent evidence from Pulsar Timing Arrays (PTAs) for a nanohertz gravitational wave background is broadly consistent with theoretical expectations from a population of massive blac…
Converging on the eccentricity of massive black hole binaries in galactic mergers
Alessia Gualandris, Justin Read, Federica Fastidio +4
Binaries of supermassive black holes (MBHBs) represent the primary sources of the gravitational wave background (GWB) detectable by Pulsar Timing Arrays (PTAs). The eccentricity wi…
Black hole dragging: a new mechanism for forming nuclear star clusters in giant elliptical galaxies
Nader Khonji, Alessia Gualandris, Justin I. Read +1
It has long been thought that nuclear star clusters (NSCs) cannot co-exist with the most massive supermassive black holes (SMBHs), since SMBH mergers - unavoidable for the most mas…
Realistic consecutive galaxy mergers form eccentric PTA sources
Federica Fastidio, Elisa Bortolas, Alessia Gualandris +3
Results from pulsar timing arrays (PTAs) show evidence of a gravitational wave background (GWB) consistent with a population of unresolved supermassive black hole binaries (BHBs).…
Core formation by binary scouring and gravitational wave recoil in massive elliptical galaxies
Nader Khonji, Alessia Gualandris, Justin I. Read +1
Scouring by supermassive black hole (SMBH) binaries is the most accepted mechanism for the formation of the cores seen in giant elliptical galaxies. However, an additional mechanis…
Eccentricity evolution of PTA sources from cosmological initial conditions
Federica Fastidio, Alessia Gualandris, Alberto Sesana +2
Recent results from pulsar timing arrays (PTAs) show evidence for a gravitational wave background (GWB) consistent with a population of unresolved supermassive black hole (SMBH) bi…
A Multi-Resolution Method for Modelling Galaxy and Massive Black Hole Mergers
Kate Attard, Alessia Gualandris, Justin I. Read +1
The coalescence of the most massive black hole (MBH) binaries releases gravitational waves (GWs) within the detectable frequency range of Pulsar Timing Arrays (PTAs) $(10^{-9} - 10…
Multiple timestep reversible -body integrators for close encounters in planetary systems
David M. Hernandez, Walter Dehnen
We present new almost time-reversible integrators for solution of planetary systems consisting of "planets" and a dominant mass ("star"). The algorithms can be considered adaptive…
Breaking Beta: A comparison of mass modelling methods for spherical systems
J. I. Read, G. A. Mamon, E. Vasiliev +6
We apply four different mass modelling methods to a suite of publicly available mock data for spherical stellar systems. We focus on the recovery of the density and velocity anisot…
Understanding the assembly of Kepler's compact planetary systems
T. O. Hands, R. D. Alexander, W. Dehnen
The Kepler mission has recently discovered a number of exoplanetary systems, such as Kepler-11 and Kepler-32, in which ensembles of several planets are found in very closely packed…
On the isolated dwarf galaxies: from cuspy to flat dark matter density profiles and metallicity gradients
S. Pasetto, E. K. Grebel, P. Berczik +2
The chemodynamical evolution of spherical multi-component self-gravitating models for isolated dwarf galaxies is studied. We compare their evolution with and without feedback effec…