1.7k citations · 13.5k across the 186 of their papers we have counts for
9 papers · 2 filters
Instabilities in disc galaxies: from noise to grooves to spirals
Sven De Rijcke, Jean-Baptiste Fouvry, Christophe Pichon
Using the linearized Boltzmann equation, we investigate how grooves carved in the phase space of a half-mass Mestel disc can trigger the vigorous growth of two-armed spiral eigenmo…
Accurate tracer particles of baryon dynamics in the adaptive mesh refinement code Ramses
Corentin Cadiou, Yohan Dubois, Christophe Pichon
We present a new implementation of the tracer particles algorithm based on a Monte Carlo approach for the Eulerian adaptive mesh refinement code Ramses. The purpose of tracer parti…
The diverse galaxy counts in the environment of high-redshift massive black holes in Horizon-AGN
Mélanie Habouzit, Marta Volonteri, Rachel S. Somerville +4
High-redshift quasars are believed to reside in highly biased regions of the Universe, where black hole (BH) growth is sustained by an enhanced number of mergers and by being at th…
The SAMI Galaxy Survey: comparing 3D spectroscopic observations with galaxies from cosmological hydrodynamical simulations
Jesse van de Sande, Claudia D. P. Lagos, Charlotte Welker +19
Cosmological hydrodynamical simulations are rich tools to understand the build-up of stellar mass and angular momentum in galaxies, but require some level of calibration to observa…
The role of mergers in driving morphological transformation over cosmic time
G. Martin, S. Kaviraj, J. E. G. Devriendt +2
Understanding the processes that trigger morphological transformation is central to understanding how and why the Universe transitions from being disc-dominated at early epochs to…
Introducing a new, robust galaxy finder algorithm for simulations
Rodrigo Cañas, Pascal J. Elahi, Charlotte Welker +4
Identifying galaxies in hydrodynamical simulations is a difficult task, particularly in regions of high density such as galaxy groups and clusters. We present a new scale-free shap…
Revisiting relaxation in globular clusters
Chris Hamilton, Jean-Baptiste Fouvry, James Binney +1
The classical theory of cluster relaxation is unsatisfactory because it involves the Coulomb logarithm. The Balescu-Lenard (BL) equation provides a rigorous alternative that has no…
Early-type galaxy spin evolution in the Horizon-AGN simulation
Hoseung Choi, Sukyoung K. Yi, Yohan Dubois +3
Using the Horizon-AGN simulation data, we study the relative role of mergers and environmental effects in shaping the spin of early-type galaxies (ETGs) after . We foll…
Total density profile of massive early-type galaxies in Horizon-AGN simulation: impact of AGN feedback and comparison with observations
S. Peirani, A. Sonnenfeld, R. Gavazzi +6
Using the two large cosmological hydrodynamical simulations, Horizon-AGN (H-AGN) and Horizon-noAGN (H-noAGN, no AGN feedback), we investigate how a typical sub-grid model for AGN f…