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Summary talk: How serious are the problems faced by CDM: cusps, thin disks, and halo substructure
Joel R. Primack
This is a summary of the discussion in Panel I of IAU Symposium 220 on Dark Matter in Galaxies. The panel topics and panellists were as follows -- Cusps Theory: Julio Navarro; Cusp…
The Origin and Distribution of Angular Momemtum in Galaxies
Joel R. Primack
Cold Dark Matter with a large cosmological constant (LambdaCDM) appears to fit large scale structure observations well. Of the possible small scale problems, the Central Cusps and…
A New Non-Parametric Approach to Galaxy Morphological Classification
Jennifer M. Lotz, Joel Primack, Piero Madau
We present two new non-parametric methods for quantifying galaxy morphology: the relative distribution of the galaxy pixel flux values (the Gini coefficient or G) and the second-or…
Flat-Cored Dark Matter in Cuspy Clusters of Galaxies
Amr El-Zant, Yehuda Hoffman, Joel Primack +2
Sand, Treu, & Ellis (2002) have measured the central density profile of cluster MS2137-23 with gravitational lensing and velocity dispersion and removed the stellar contribution wi…
The Dark Side of the Halo Occupation Distribution
Andrey V. Kravtsov, Andreas A. Berlind, Risa H. Wechsler +4
We analyze the halo occupation distribution (HOD), the probability for a halo of mass M to host a number of subhalos N, and two-point correlation function of galaxy-size dark matte…
Dark Matter Profile in the Galactic Center
Oleg Y. Gnedin, Joel R. Primack
We describe a quasi-equilibrium profile of dark matter particles in the inner parsec of the Galaxy, rho ~ r^-3/2. This "mini-cusp" profile is caused by scattering with the dense st…