342 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of WarsawPL53 papers
- Durham UniversityGB15 papers
- Polish Academy of SciencesPL9 papers
- Chinese Academy of SciencesCN7 papers
- National Astronomical ObservatoriesCN7 papers
- Institute of High Pressure PhysicsPL5 papers
- University of PortsmouthGB5 papers
- University of GroningenNL4 papers
- University of Zielona GóraPL4 papers
- Warsaw University of TechnologyPL4 papers
- Institute of PhysicsPL3 papers
- Nicolaus Copernicus Astronomical CenterPL3 papers
14 papers · 1 filter
The Mass-Concentration-Redshift Relation of Cold and Warm Dark Matter Halos
Aaron D. Ludlow, Sownak Bose, Raúl E. Angulo +5
We use a suite of cosmological simulations to study the mass-concentration-redshift relation, , of dark matter halos. Our simulations include standard -cold dark m…
Constraints on the identity of the dark matter from strong gravitational lenses
Ran Li, Carlos S. Frenk, Shaun Cole +3
The cold dark matter (CDM) cosmological model unambigously predicts that a large number of haloes should survive as subhaloes when they are accreted into a larger halo. The CDM mod…
Modified Gravity N-body Code Comparison Project
Hans A. Winther, Fabian Schmidt, Alexandre Barreira +12
Self-consistent -body simulations of modified gravity models are a key ingredient to obtain rigorous constraints on deviations from General Relativity using large-scale st…
The Copernicus Complexio: a high-resolution view of the small-scale Universe
Wojciech A. Hellwing, Carlos S. Frenk, Marius Cautun +5
We introduce Copernicus Complexio (COCO), a high-resolution cosmological N-body simulation of structure formation in the model. COCO follows an approximately spheric…
Halo model and halo properties in Galileon gravity cosmologies
Alexandre Barreira, Baojiu Li, Wojciech A. Hellwing +3
We investigate the performance of semi-analytical modelling of large-scale structure in Galileon gravity cosmologies using results from N-body simulations. We focus on the Cubic an…
A clear and measurable signature of modified gravity in the galaxy velocity field
Wojciech A. Hellwing, Alexandre Barreira, Carlos S. Frenk +2
The velocity field of dark matter and galaxies reflects the continued action of gravity throughout cosmic history. We show that the low-order moments of the pairwise velocity distr…
Simulating the quartic Galileon gravity model on adaptively refined meshes
Baojiu Li, Alexandre Barreira, Carlton M. Baugh +4
We develop a numerical algorithm to solve the high-order nonlinear derivative-coupling equation associated with the quartic Galileon model, and implement it in a modified version o…
Betti numbers of Gaussian fields
Changbom Park, Pratyush Pranav, Pravabati Chingangbam +6
We present the relation between the genus in cosmology and the Betti numbers for excursion sets of three- and two-dimensional smooth Gaussian random fields, and numerically investi…
Nonlinear structure formation in the Cubic Galileon gravity model
Alexandre Barreira, Baojiu Li, Wojciech A. Hellwing +2
We model the linear and nonlinear growth of large scale structure in the Cubic Galileon gravity model, by running a suite of N-body cosmological simulations using the {\tt ECOSMOG}…
Hierarchical clustering in chameleon gravity
Wojciech A. Hellwing, Baojiu Li, Carlos S. Frenk +1
We use a suite of high resolution state-of-the-art N-body Dark Matter simulations of chameleon gravity to study the higher order volume averaged correlation functions $\bar{…
The nonlinear matter and velocity power spectra in f(R) gravity
Baojiu Li, Wojciech A. Hellwing, Kazuya Koyama +3
We study the matter and velocity divergence power spectra in a f(R) gravity theory and their time evolution measured from several large-volume N-body simulations with varying box s…
Skewness as a probe of Baryon Acoustic Oscillations
Roman Juszkiewicz, Wojciech A. Hellwing, Rien van de Weygaert
In this study we show that the skewness S_3 of the cosmic density field contains a significant and potentially detectable and clean imprint of Baryonic Acoustic Oscillations. Altho…
DM haloes in the fifth-force cosmology
Wojciech A. Hellwing, Marius Cautun, Alexander Knebe +2
We investigate how long-range scalar interactions affect the properties of dark matter haloes. For doing so we employ the ReBEL model which implements an additional interaction bet…
Hierarchy of N-point functions in the LCDM and ReBEL cosmologies
Wojciech A. Hellwing, Roman Juszkiewicz, Rien van de Weygaert
In this work we investigate higher order statistics for the $\lcdm$ and ReBEL scalar-interacting dark matter models by analyzing $180\hmpc$ dark matter N-body simulation ensembles.…