Simple Models for the Distribution of Dark Matter

Abstract

We introduce a simple family of models for representing the dark matter in galaxies. The potential and phase space distribution function are all elementary, while the density is cusped. The models are all hypervirial, that is, the virial theorem holds locally, as well as globally. As an application to dark matter studies, we compute some of the properties of gamma-ray sources caused by neutralino self-annihilation in dark matter clumps.

to appear in A&A, including 4 figures, appendices B&C are only available through arxiv

References in corpus (8)

• The Structure of Cold Dark Matter Halos
• Simulations of X-ray Clusters
• Resolving the Structure of Cold Dark Matter Halos
• Earth-mass dark-matter haloes as the first structures in the early Universe
• The Hernquist model revisited: completely analytical anisotropic dynamical models
• Particle Dark Matter Constraints from the Draco Dwarf Galaxy
• Hypervirial Models of Stellar Systems
• The Anisotropy of the Ultra-High Energy Cosmic Rays

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• Rotation and surface abundance peculiarities in A-type stars
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• A statistical-mechanical explanation of dark matter halo properties
• Nature and Nurture in Dark Matter Halos
• The double-power approach to spherically symmetric astrophysical systems
• The Doubloon Models of Dark Haloes
• Gravitational Fugacity as the seed of self-organized violent relaxaton process toward Local Virial relation
• Distribution Function of Dark Matter with Constant Anisotropy
• The effects of a non-zero cosmological constant on the Veltmann models