1.5k citations · 4.7k across the 73 of their papers we have counts for
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COLA with massive neutrinos
Bill S. Wright, Hans A. Winther, Kazuya Koyama
The effect of massive neutrinos on the growth of cold dark matter perturbations acts as a scale-dependent Newton's constant and leads to scale-dependent growth factors just as we o…
Constraining spatial variations of the fine-structure constant in symmetron models
A. M. M. Pinho, M. Martinelli, C. J. A. P. Martins
We introduce a methodology to test models with spatial variations of the fine-structure constant , based on the calculation of the angular power spectrum of these measurements.…
Characterising dark matter haloes with computer vision
Julian Merten, Quim Llorens, Hans Winther
This work explores the ability of computer vision algorithms to characterise dark matter haloes formed in different models of structure formation. We produce surface mass density m…
Dark matter haloes in modified gravity and dark energy: interaction rate, small-, and large-scale alignment
Benjamin L'Huillier, Hans A. Winther, David F. Mota +2
We study the properties of dark matter haloes in a wide range of modified gravity models, namely, , DGP, and interacting dark energy models. We study the effects of modified…
COLA with scale-dependent growth: applications to screened modified gravity models
Hans A. Winther, Kazuya Koyama, Marc Manera +2
We present a general parallelized and easy-to-use code to perform numerical simulations of structure formation using the COLA (COmoving Lagrangian Acceleration) method for cosmolog…
The halo mass function in the cosmic web
Francesca von Braun-Bates, Hans A. Winther, David Alonso +1
An important indicator of modified gravity is the effect of the local environment on halo properties. This paper examines the influence of the local tidal structure on the halo mas…
Theoretical Accuracy in Cosmological Growth Estimation
Benjamin Bose, Kazuya Koyama, Wojciech A. Hellwing +2
We elucidate the importance of the consistent treatment of gravity-model specific non-linearities when estimating the growth of cosmological structures from redshift space distorti…
The dynamics of the local group as a probe of Dark Energy and Modified Gravity
Edoardo Carlesi, David F. Mota, Hans Winther
In this work we study the dynamics of the Local Group (LG) within the context of cosmological models beyond General Relativity (GR). Using observable kinematic quantities to identi…