Dark Matter in the Local Universe

Abstract

We review how dark matter is distributed in our local neighbourhood from an observational and theoretical perspective. We will start by describing first the dark matter halo of our own galaxy and in the Local Group. Then we proceed to describe the dark matter distribution in the more extended area known as the Local Universe. Depending on the nature of dark matter, numerical simulations predict different abundances of substructures in Local Group galaxies, in the number of void regions and in the abundance of low rotational velocity galaxies in the Local Universe. By comparing these predictions with the most recent observations, strong constrains on the physical properties of the dark matter particles can be derived. We devote particular attention to the results from the Constrained Local UniversE Simulations (CLUES) project, a special set of simulations whose initial conditions are constrained by observational data from the Local Universe. The resulting simulations are designed to reproduce the observed structures in the nearby universe. The CLUES provides a numerical laboratory for simulating the Local Group of galaxies and exploring the physics of galaxy formation in an environment designed to follow the observed Local Universe. It has come of age as the numerical analogue of Near-Field Cosmology.

To be published in New Astronomy Reviews

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• MultiDark-Galaxies: data release and first results
• Constrained Local UniversE Simulations: A Local Group Factory
• The distribution of mass components in simulated disc galaxies
• Vast planes of satellites in a high resolution simulation of the Local Group: comparison to Andromeda
• SIBELIUS-DARK: a galaxy catalogue of the Local Volume from a constrained realisation simulation
• The history of the dark and luminous side of Milky Way-like progenitors
• The quasi-linear nearby Universe
• Estimating the Mass of the Local Group using Machine Learning Applied to Numerical Simulations
• Cosmic-Ray Anisotropy from Large Scale Structure and the effect of magnetic horizons
• On the early evolution of Local Group dwarf galaxy types: star formation and supernova feedback
• Hamiltonian Monte Carlo reconstruction from peculiar velocities
• The Milky Way and Andromeda galaxies in a constrained hydrodynamical simulation: morphological evolution
• The Effect of Environment on Milky Way-mass galaxies in a Constrained Simulation of the Local Group
• From Cosmicflows distance moduli to unbiased distances and peculiar velocities
• Reionization of the Milky Way, M31, and their satellites I: reionization history and star formation
• Electrodynamics of a Cosmic Dark Fluid
• Field-Based Physical Inference From Peculiar Velocity Tracers
• The Extended Local Supercluster
• An Inconsistency in standard Maximum Likelihood Estimation of Bulk Flows
• Numerical simulations of bar formation in the Local Group
• Setting the Stage: Structures from Gaussian Random Fields
• Dark Energy and Dark Matter Interaction: Kernels of Volterra Type and Coincidence Problem
• Universal subhalo accretion in cold and warm dark matter cosmologies
• A Local Universe model for constrained simulations
• Introducing cosmosTNG: simulating galaxy formation with constrained realizations of the COSMOS field
• Kinematics of the Local Group gas and galaxies in the Hestia simulations
• Diversity of dwarf galaxy IR-submm emission patterns: CLUES from hydrodynamical simulations
• Renzo's rule revisited: A statistical study of galaxies' baryon - dark matter coupling
• Self-interaction in a cosmic dark fluid: The four-kernel rheological extension of the equations of state