Galaxy Formation: Warm Dark Matter, Missing Satellites, and the Angular Momentum Problem

Abstract

We present warm dark matter (WDM) as a possible solution to the missing satellites and angular momentum problem in galaxy formation and introduce improved initial conditions for numerical simulations of WDM models, which avoid the formation of unphysical haloes found in earlier simulations. There is a hint, that the mass function of satellite haloes has been overestimated so far, pointing to higher values for the WDM particle mass.

arXiv comment5 pages, 2 figures, submitted to the proceedings of the Euroconference "Galaxy Evolution - III. From simple approaches to self-consistent models", Kiel, 2002. A high-quality version of Fig. 1 can be downloaded from http://www.tac.dk/~gotz/goetz.fig1.eps; some minor and a major typo corrected

References in corpus (10)

• Dark Matter Substructure in Galactic Halos
• Where are the missing galactic satellites?
• Halo Formation in Warm Dark Matter Models
• HOP: A New Group-Finding Algorithm for N-body Simulations
• Substructure and halo density profiles in a Warm Dark Matter Cosmology
• Hydra: An Adaptive--Mesh Implementation of PPPM--SPH
• Formation of Disk Galaxies: Warm Dark Matter and the Angular Momentum problem
• The dearth of halo dwarf galaxies: is there power on short scales?
• Star Formation, Supernovae Feedback and the Angular Momentum Problem in Numerical CDM Cosmogony: Half Way There?
• Suppressing Linear Power on Dwarf Galaxy Halo Scales

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