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In this second paper we present the first Nbody cosmological simulations of strongly coupled Dark Energy models (SCDEW), a class of models that alleviates theoretical issues related to the nature of dark energy. SCDEW models assume a strong…

Cosmology and Nongalactic Astrophysics · Physics 2015-10-09 Andrea V. Macciò , Roberto Mainini , Camilla Penzo , Silvio A. Bonometto

We study cluster mass dark matter haloes, their progenitors and surroundings in an coupled Dark Matter-Dark Energy model and compare it to quintessence and $\Lambda$CDM models with adiabatic zoom simulations. When comparing cosmologies with…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-22 Pascal J. Elahi , Geraint F. Lewis , Chris Power , Edoardo Carlesi , Alexander Knebe

We study the halo mass accretion history (MAH) and its correlation with the internal structural properties in coupled dark energy cosmologies (cDE). To accurately predict all the non-linear effects caused by dark interactions, we use the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Carlo Giocoli , Federico Marulli , Marco Baldi , Lauro Moscardini , R. Benton Metcalf

The recently proposed Multi-coupled Dark Energy (McDE) scenario - characterised by two distinct Cold Dark Matter (CDM) particle species with opposite couplings to a Dark Energy scalar field - introduces a number of novel features in the…

Cosmology and Nongalactic Astrophysics · Physics 2014-03-12 Marco Baldi

We investigate the spatial properties of the large scale structure (LSS) of the Universe in the framework of coupled dark energy (cDE) cosmologies. Using the public halo catalogues from the CoDECS simulations -- the largest set of N-body…

Cosmology and Nongalactic Astrophysics · Physics 2012-02-22 Federico Marulli , Marco Baldi , Lauro Moscardini

The phase-space structure of primordial dark matter halos is revisited using cosmological simulations with three sine waves and Cold Dark Matter (CDM) initial conditions. The simulations are performed with the tessellation based Vlasov…

Cosmology and Nongalactic Astrophysics · Physics 2021-03-17 Stéphane Colombi

Accurately predicting structural properties of dark matter halos is one of the fundamental goals of modern cosmology. We use the new suite of MultiDark cosmological simulations to study the evolution of dark matter halo density profiles,…

Cosmology and Nongalactic Astrophysics · Physics 2016-06-15 Anatoly Klypin , Gustavo Yepes , Stefan Gottlober , Francisco Prada , Steffen Hess

We investigate the possibility of constraining coupled dark energy (cDE) cosmologies using the three-point correlation function (3PCF). Making use of the CoDECS N-body simulations, we study the statistical properties of cold dark matter…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 Michele Moresco , Federico Marulli , Marco Baldi , Lauro Moscardini , Andrea Cimatti

We present the first numerical simulations in coupled dark energy cosmologies with high enough resolution to investigate the effects of the coupling on galactic and sub-galactic scales. We choose two constant couplings and a time-varying…

Cosmology and Nongalactic Astrophysics · Physics 2016-07-27 Camilla Penzo , Andrea V. Macciò , Marco Baldi , Luciano Casarini , Jose Oñorbe

We propose a new numerical procedure to simulate a single dark halo of any size and mass in a hierarchical framework coupling the extended Press-Schechter formalism (EPSF) to N-body simulations. The procedure consists of assigning…

Astrophysics · Physics 2009-11-07 Elena D'Onghia , Claudio Firmani , Guido Chincarini

We study the concentration parameters, their mass dependence and redshift evolution, of dark-matter halos in different dark-energy cosmologies with constant and time-variable equation of state, and compare them with "standard'' Lambda-CDM…

We present the results of a series of cosmological $N$-body simulations of a Vector Dark Energy (VDE) model, performed using a suitably modified version of the publicly available \texttt{GADGET}-2 code. The setups of our simulations were…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Edoardo Carlesi , Alexander Knebe , Gustavo Yepes , Stefan Gottloeber , Jose Beltran Jimenez , Antonio L. Maroto

We study the concentration of dark matter halos and its evolution in N-body simulations of the standard LCDM cosmology. The results presented in this paper are based on 4 large N-body simulations with about 10 billion particles each: the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Francisco Prada , Anatoly A. Klypin , Antonio J. Cuesta , Juan E. Betancort-Rijo , Joel Primack

The mass function of cluster-size halos and their redshift distribution are computed for 12 distinct accelerating cosmological scenarios and confronted to the predictions of the conventional flat $\Lambda$CDM model. The comparison with…

Cosmology and Nongalactic Astrophysics · Physics 2010-10-27 S. Basilakos , M. Plionis , J. A. S. Lima

We use a cosmological simulation of the Local Group to make quantitative and speculative predictions for direct detection experiments. Cold dark matter (CDM) halos form via a complex series of mergers, accretion events and violent…

Profiles of dark matter-dominated halos at the group and cluster scales play an important role in modern cosmology. Using results from two very large cosmological $N$-body simulations, which increase the available volume at their mass…

Cosmology and Nongalactic Astrophysics · Physics 2018-09-27 Hillary L. Child , Salman Habib , Katrin Heitmann , Nicholas Frontiere , Hal Finkel , Adrian Pope , Vitali Morozov

We study properties of dark matter halos in a variety of models which include Dark Energy (DE). We consider both DE due to a scalar field self--interacting through Ratra-Peebles or SUGRA potentials, and DE with constant negative w=p\rho…

Astrophysics · Physics 2009-11-07 A. Klypin , A. V. Maccio' , R. Mainini , S. A. Bonometto

We study structure formation in alternative cosmological models constrained by background observations, including $\Lambda$CDM, wCDM, the Chevallier-Polarski-Linder parametrisation and a flexible Chebyshev expansion of the dark energy…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-15 Greco A. Peña , Mario H. Amante , Javier Chagoya , Cristian Barrera-Hinojosa , C. Ortiz , Graeme Candlish

In this paper, we present a simulation method within the two-component spherical collapse model to investigate dark energy perturbations associated with the formation of dark matter halos. The realistic mass accretion history of a dark…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Qiao Wang , Zuhui Fan

A significant fraction of mass in the universe is believed to be in the form of dark matter (DM). Due to gravitational instability, the DM collapses hierarchically into DM halos. In this contribution we present a study of the formation and…

Astrophysics · Physics 2007-05-23 Stefan Gottloeber , Anatoly Klypin , Andrey Kravtsov
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