869 citations · 7.8k across the 80 of their papers we have counts for
81 papers
Decaying Dark Matter Halo Abundance from a Revised Spherical Collapse Model
Thomas Montandon, Vivian Poulin, Oliver Hahn +2
We present a semi-analytical framework for the halo mass function (HMF) in decaying dark matter (DDM) cosmologies, in which dark matter decays into a massive daughter particle inhe…
Testing the assumptions of the Effective Field Theory of Large-Scale Structure
Mandar Karandikar, Cristiano Porciani, Oliver Hahn
The Effective Field Theory of Large-Scale Structure (EFTofLSS) attempts to amend some of the shortcomings of the traditional perturbative methods used in cosmology. It models the e…
Hydrodynamical simulations of galaxy formation with non-Gaussian initial conditions
Clément Stahl, Yohan Dubois, Benoit Famaey +4
Collisionless simulations of structure formation with significant local primordial non-Gaussianities at Mpc scales have shown that a non-Gaussian tail favouring underdensities, wit…
The FLAMINGO project: cosmological hydrodynamical simulations for large-scale structure and galaxy cluster surveys
Joop Schaye, Roi Kugel, Matthieu Schaller +17
We introduce the Virgo Consortium's FLAMINGO suite of hydrodynamical simulations for cosmology and galaxy cluster physics. To ensure the simulations are sufficiently realistic for…
Searching for clues of past binary supermassive black hole mergers in nuclear star clusters
Alessandra Mastrobuono-Battisti, Go Ogiya, Oliver Hahn +1
Galaxy mergers are common processes in the Universe. As a large fraction of galaxies hosts at their centres a central supermassive black hole (SMBH), mergers can lead to the format…
Perturbation-theory informed integrators for cosmological simulations
Florian List, Oliver Hahn
Large-scale cosmological simulations are an indispensable tool for modern cosmology. To enable model-space exploration, fast and accurate predictions are critical. In this paper, w…