The dynamical structure of broken power-law and double power-law models for dark matter haloes

Analytical Dynamical Models for Double-Power-Law Galactic Nuclei

Motivated by the finding that the observed surface brightness profile of many galactic nuclei are well fit by double-power-laws, we explore a range of spherical self-consistent dynamical models with this light profile. We find that the corresponding deprojected volume density profile, phase space density and line-of-sight velocity distribution of these models are well fit by simple analytic app...

Is the Radial Profile of the Phase-Space Density of Dark Matter Haloes a Power-Law?

The latest cosmological N -body simulations find two intriguing properties for dark matter haloes: (1) their radial density profile, ρ, is better fit by a form that flattens to a constant at the halo center (the Einasto profile) than the widely-used NFW form; (2) the radial profile of the pseudo-phase-space density, ρ/σ r , on the other hand, continues to be well fit by a power law, as seen in ...

The dynamical structure of dark matter haloes

Thanks to the ever increasing computational power and the development of more sophisticated algorithms, numerical N -body simulations are now uncovering several phenomenological relations between the physical properties of dark matter haloes in position and velocity space. It is the aim of the present work to investigate in detail the dynamical structure of dark matter haloes, as well as its po...

Triaxial haloes, intrinsic alignments and the dark matter power spectrum

We develop the halo model of large-scale structure to include triaxial dark matter haloes and their intrinsic alignments. As a direct application we derive general expressions for the two-point correlation function and the power spectrum. We then focus on the power spectrum and numerically solve the general expressions for two different models of the triaxial profiles. The first is a toy-model ...

Multicast Tree Structure and the Power Law