8 papers · 1 filter
Power-laws and Non-Power-laws in Dark Matter Halos
R. N. Henriksen
Simulated dark matter profiles are often modelled as a `NFW' density profile rather than a single power law. Recently, attention has turned to the rather rigorous power-law behavio…
On Universal Halos and the Radial Orbit Instability
Joseph D. MacMillan, Lawrence M. Widrow, Richard N. Henriksen
The radial orbit instability drives dark matter halos toward a universal structure. This conclusion, first noted by Huss, Jain, and Steinmetz, is explored in detail through a serie…
Non-radial motion and the NFW profile
Morgan Le Delliou, Richard N Henriksen
The self-similar infall model (SSIM) is normally discussed in the context of radial orbits in spherical symmetry. However it is possible to retain the spherical symmetry while perm…
Relaxation of a Collisionless System and the Transition to a New Equilibrium Velocity Distribution
Thomas E. C. Merrall, Richard N. Henriksen
In this paper, we present our conclusions from the numerical study of the collapse of a destabilized collisionless stellar system. We use both direct integration of the Vlasov-Pois…
Dynamical Black Hole Growth and the M_{BH}-σRelation
Joseph D. MacMillan, Richard N. Henriksen
This poster discusses a possible explanation for the relationship between the mass of the central supermassive black hole and the velocity dispersion in the bulge of the host galax…
Magnetized Protostellar Bipolar Outflows I. Self-similar model
Thibaut Lery, Richard N. Henriksen, Jason D. Fiege
We study a self-similar circulation model for protostellar bipolar outflows. The model is axisymmetric and stationary, and now includes Poynting flux. Compared to an earlier versio…