3-3-1 Self Interacting Dark Matter and the Galaxy Core-Cusp problem

Abstract

The core-cusp problem remains as a challenging discrepancy between observations and simulations in the standard $\Lambda$CDM model for the formation of galaxies. The problem is that $\Lambda$CDM simulations predict a steep power-law mass density profile at the center of galactic dark matter halos. However, observations of dwarf galaxies in the Local Group reveal a density profile consistent with a nearly flat distribution of dark matter near the center. A number of solutions to this dilemma have been proposed. Here, we summarize investigations into the possibility that the dark matter particles themselves self interact and scatter. Such self-interacting dark matter (SIDM) particles can smooth out the dark-matter profile in high-density regions. We also review the theoretical proposal that self-interacting dark matter may arise as an additional Higgs scalar in the 3-3-1 extension of the standard model. We present new simulations of galaxy formation and evolution for this formulation of self-interacting dark matter. Current constraints on this self-interacting dark matter are then summarized.

arXiv comment11 pages, 5 figures, accepted in MPLA

References in corpus (40)

• A Universal Density Profile from Hierarchical Clustering
• The Structure of Cold Dark Matter Halos
• Dark Matter Substructure in Galactic Halos
• Where are the missing galactic satellites?
• Dwarf Galaxies of the Local Group
• The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
• Observational evidence for self-interacting cold dark matter
• Planck 2018 results. I. Overview and the cosmological legacy of Planck
• Too big to fail? The puzzling darkness of massive Milky Way subhaloes
• The Structure of Dark Matter Haloes in Dwarf Galaxies
• Cold collapse and the core catastrophe
• A History of Dark Matter
• The Cosmic Triangle: Revealing the State of the Universe
• The Minimal Model of Nonbaryonic Dark Matter: A Singlet Scalar
• Reionization and the abundance of galactic satellites
• Enzo: An Adaptive Mesh Refinement Code for Astrophysics
• Observational and Theoretical Constraints on Singular Dark Matter Halos
• The Milky Way's bright satellites as an apparent failure of LCDM
• $SU(3)\otimes U(1)$ Model for Electroweak Interactions
• Density profiles and substructure of dark matter halos: converging results at ultra-high numerical resolution
• Thermally Generated Gauge Singlet Scalars as Self-Interacting Dark Matter
• Cosmic Concordance and Quintessence
• Halo Properties in Cosmological Simulations of Self-Interacting Cold Dark Matter
• $\mbox{SU}(3)_L \otimes \mbox{U}(1)_N$ and $\mbox{SU}(4)_L \otimes \mbox{U}(1)_N$ gauge models with right-handed neutrinos
• Mass Models for Low Surface Brightness Galaxies with High Resolution Optical Velocity Fields
• Testing the Dark Matter Hypothesis with Low Surface Brightness Galaxies and Other Evidence
• Weakly Self-Interacting Dark Matter and the Structure of Dark Halos
• NGC 3741: dark halo profile from the most extended rotation curve
• Dark matter annihilation and decay in dwarf spheroidal galaxies: The classical and ultrafaint dSphs
• Self-interacting Dark Matter and Invisibly Decaying Higgs
• An excess of small-scale gravitational lenses observed in galaxy clusters
• High Resolution Optical Velocity Fields of 11 Low Surface Brightness Galaxies
• Gravothermal collapse of isolated self-interacting dark matter haloes: N-body simulation versus the fluid model
• Collisional Dark Matter and the Origin of Massive Black Holes
• Cosmological Constraints on an Invisibly Decaying Higgs Boson
• Scalar sector of the 3 3 1 model with three Higgs triplets
• Collisional Dark Matter and Scalar Phantoms
• Self-interacting dark matter from an SU(3)_L \otimes U(1)_N electroweak model
• Self-interacting dark matter and Higgs bosons in the SU(3)_C x SU(3)_L x U(1)_N model with right-handed neutrinos
• Origin and Evolution of Structure and Nucleosynthesis for Galaxies in the Local Group