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Paper: The Core-Cusp Problem in CDM Halos and Supernova Feedback
Volume: 458, Galactic Archaeology: Near-Field Cosmology and the Formation of the Milky Way
Page: 385
Authors: Ogiya, G.; Mori, M.
Abstract: The Core-Cusp problem is one of the open questions on Cold Dark Matter (CDM) cosmology. It is a discrepancy about the mass-density distribution of a dark matter halo between theory and observation. We study about the dynamical response of a virialized system with a central cusp to the energy feedback driven by supernova explosions from the galaxy center using collisionless N-body simulations. Here, we focus on the timescale of gravitational potential change induced by supernova feedback. The simulations indicate that the timescale is one of important factors to determine the dynamical evolution of the DM halos.
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