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We simulate the assembly of a massive rich cluster and the formation of its constituent galaxies in a flat, low-density universe. Our most accurate model follows the collapse, the star-formation history and the orbital motion of all…

Astrophysics · Physics 2009-09-25 Volker Springel , Simon White , Giuseppe Tormen , Guinevere Kauffmann

The measurement of the absolute neutrino mass scale from cosmological large-scale clustering data is one of the key science goals of the Euclid mission. Such a measurement relies on precise modelling of the impact of neutrinos on structure…

Cosmology and Nongalactic Astrophysics · Physics 2023-08-09 J. Adamek , R. E. Angulo , C. Arnold , M. Baldi , M. Biagetti , B. Bose , C. Carbone , T. Castro , J. Dakin , K. Dolag , W. Elbers , C. Fidler , C. Giocoli , S. Hannestad , F. Hassani , C. Hernández-Aguayo , K. Koyama , B. Li , R. Mauland , P. Monaco , C. Moretti , D. F. Mota , C. Partmann , G. Parimbelli , D. Potter , A. Schneider , S. Schulz , R. E. Smith , V. Springel , J. Stadel , T. Tram , M. Viel , F. Villaescusa-Navarro , H. A. Winther , B. S. Wright , M. Zennaro , N. Aghanim , L. Amendola , N. Auricchio , D. Bonino , E. Branchini , M. Brescia , S. Camera , V. Capobianco , V. F. Cardone , J. Carretero , F. J. Castander , M. Castellano , S. Cavuoti , A. Cimatti , R. Cledassou , G. Congedo , L. Conversi , Y. Copin , A. Da Silva , H. Degaudenzi , M. Douspis , F. Dubath , C. A. J. Duncan , X. Dupac , S. Dusini , S. Farrens , S. Ferriol , P. Fosalba , M. Frailis , E. Franceschi , S. Galeotta , B. Garilli , W. Gillard , B. Gillis , A. Grazian , S. V. Haugan , W. Holmes , A. Hornstrup , K. Jahnke , S. Kermiche , A. Kiessling , M. Kilbinger , T. Kitching , M. Kunz , H. Kurki-Suonio , P. B. Lilje , I. Lloro , O. Mansutti , O. Marggraf , F. Marulli , R. Massey , E. Medinaceli , M. Meneghetti , G. Meylan , M. Moresco , L. Moscardini , E. Munari , S. -M. Niemi , C. Padilla , S. Paltani , F. Pasian , K. Pedersen , W. J. Percival , V. Pettorino , G. Polenta , M. Poncet , L. A. Popa , F. Raison , R. Rebolo , A. Renzi , J. Rhodes , G. Riccio , E. Romelli , M. Roncarelli , R. Saglia , D. Sapone , B. Sartoris , P. Schneider , T. Schrabback , A. Secroun , G. Seidel , C. Sirignano , G. Sirri , L. Stanco , J. -L. Starck , P. Tallada-Crespí , A. N. Taylor , I. Tereno , R. Toledo-Moreo , F. Torradeflot , I. Tutusaus , L. Valenziano , T. Vassallo , Y. Wang , J. Weller , A. Zacchei , G. Zamorani , J. Zoubian , G. Fabbian , V. Scottez

We present a gravitational lensing and X-ray analysis of a massive galaxy cluster and its surroundings. The core of MACS\,J0717.5+3745 ($M(R<1\,{\rm Mpc})\sim$\,$2$$\times$$10^{15}\,\msun$, $z$=$0.54$) is already known to contain four…

We present the first results from the JUropa huBbLE volumE (Jubilee) project, based a large N-body, dark matter-only cosmological simulation with a volume of $V=(6 h^{-1}\mathrm{Gpc})^3$, containing 6000$^3$ particles, performed within the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 W. A. Watson , I. T. Iliev , J. M. Diego , S. Gottlöber , A. Knebe , E. Martínez-González , G. Yepes

We introduce the Lomonosov suite of high-resolution N-body cosmological simulations covering a full box of size 32 $h^{-1}$ Mpc with low-mass resolution particles ($2\times10^7$ $h^{-1}\,M_\odot$) and three zoom-in simulations of overdense,…

Cosmology and Nongalactic Astrophysics · Physics 2017-09-07 Sergey V. Pilipenko , Miguel A. Sánchez-Conde , Francisco Prada , Gustavo Yepes

Galaxy clusters, the most massive, dark-matter-dominated, and most recently assembled structures in the Universe, are key tools for probing cosmology. However, uncertainties in scaling relations that connect cluster mass to observables like…

Cosmology and Nongalactic Astrophysics · Physics 2025-09-24 Giulia Cerini , Elena Bellomi , Nico Cappelluti , Sabina Khizroev , Erwin T. Lau , Priyamvada Natarajan , John ZuHone

Upcoming cosmological surveys have the potential to reach groundbreaking discoveries on multiple fronts, including the neutrino mass, dark energy, and inflation. Most of the key science goals require the joint analysis of datasets from…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-12 Adrian E. Bayer , Yici Zhong , Zack Li , Joseph DeRose , Yu Feng , Jia Liu

The Galactic Center Excess (GCE) is a compelling signature of dark matter annihilation, but its spectral morphology is difficult to reconcile with the traditional paradigm of a single particle species. In this work, we perform a systematic…

High Energy Physics - Phenomenology · Physics 2026-03-19 Farinaldo S. Queiroz , Clarissa Siqueira , Carlos E. Yaguna

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 gravitationally-driven evolution of cold dark matter dominates the formation of structure in the Universe over a wide range of length scales. While the longest scales can be treated by perturbation theory, a fully quantitative…

Astrophysics · Physics 2009-11-10 Katrin Heitmann , Paul M. Ricker , Michael S. Warren , Salman Habib

Using the largest mosaic of Hubble Space Telescope images around a galaxy cluster, we map the distribution of dark matter throughout a $\sim$$6\times6$ Mpc$^2$ area centred on the cluster MS 0451-03 ($z=0.54$, $M_{200}=1.65\times10^{15}…

The international Muon Ionization Cooling Experiment (MICE) aims to demonstrate muon beam ionization cooling for the first time and constitutes a key part of the R&D towards a future neutrino factory or muon collider. Beam cooling reduces…

Accelerator Physics · Physics 2019-08-15 Tanaz Angelina Mohayai , Pavel Snopok , David Neuffer , Chris Rogers

In this paper we describe the set of ``New Worlds Simulations'', three very large cosmology simulations, Qo'noS, Vulcan, and Ferenginar, that were carried out on the Summit supercomputer with the Hardware/Hybrid Cosmology Code, HACC. The…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-12 Katrin Heitmann , Thomas Uram , Nicholas Frontiere , Salman Habib , Adrian Pope , Silvio Rizzi , Joe Insley

We reproduce the galaxy clustering catalogue from the SDSS-III Baryon Oscillation Spectroscopic Survey Final Data Release (BOSS DR11&DR12) with high fidelity on all relevant scales in order to allow a robust analysis of baryon acoustic…

We investigate the large-scale clustering and gravitational interaction of baryons and dark matter (DM) over cosmic time using a set of collisionless N-body simulations. Both components, baryons and DM, are evolved from distinct primordial…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Raul E. Angulo , Oliver Hahn , Tom Abel

We present two matched sets of five simulations each, covering five presently favored simple modifications to the standard cold dark matter (CDM) scenario. One simulation suite, with a linear box size of 75 Mpc/h, is designed for high…

The Dark Sky Simulations are an ongoing series of cosmological N-body simulations designed to provide a quantitative and accessible model of the evolution of the large-scale Universe. Such models are essential for many aspects of the study…

Cosmology and Nongalactic Astrophysics · Physics 2014-07-10 Samuel W. Skillman , Michael S. Warren , Matthew J. Turk , Risa H. Wechsler , Daniel E. Holz , P. M. Sutter

We report on a new method for incorporating interactions between dark matter (DM) and baryons in cosmological simulations, capable of handling the challenging regime in which the dark matter particle mass is comparable to or lighter than…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-23 Connor Hainje , Glennys R. Farrar

We construct an emulator for the halo mass function over group and cluster mass scales for a range of cosmologies, including the effects of dynamical dark energy and massive neutrinos. The emulator is based on the recently completed…

Cosmology and Nongalactic Astrophysics · Physics 2020-08-06 Sebastian Bocquet , Katrin Heitmann , Salman Habib , Earl Lawrence , Thomas Uram , Nicholas Frontiere , Adrian Pope , Hal Finkel

The Quijote simulations are a set of 44,100 full N-body simulations spanning more than 7,000 cosmological models in the $\{\Omega_{\rm m}, \Omega_{\rm b}, h, n_s, \sigma_8, M_\nu, w \}$ hyperplane. At a single redshift the simulations…