Self-Interacting Dark Matter Subhalos in the Milky Way's Tides

Abstract

We study evolution of self-interacting dark matter (SIDM) subhalos in the Milky Way (MW) tidal field. The interaction between the subhalos and the MW's tides lead to more diverse dark matter distribution in the inner region, compared to their cold dark matter counterparts. We test this scenario with two MW satellite galaxies, Draco and Fornax, opposite extremes in the inner dark matter content, and find that they can be accommodated within the SIDM model proposed to explain the diverse rotation curves of spiral galaxies in the field.

arXiv comment6 pages, 3 figures. Updated figures and text. Accepted for publication in PRL

References in corpus (61)

• Planck 2015 results. XIII. Cosmological parameters
• The Structure of Cold Dark Matter Halos
• Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
• Observational evidence for self-interacting cold dark matter
• The observed properties of dwarf galaxies in and around the Local Group
• GADGET: A code for collisionless and gasdynamical cosmological simulations
• Small-Scale Challenges to the $\Lambda$CDM Paradigm
• Too big to fail? The puzzling darkness of massive Milky Way subhaloes
• Properties of galaxies reproduced by a hydrodynamic simulation
• Dark Matter Self-interactions and Small Scale Structure
• Cold dark matter haloes in the Planck era: evolution of structural parameters for Einasto and NFW profiles
• Mass models of the Milky Way
• Cosmological Simulations with Self-Interacting Dark Matter I: Constant Density Cores and Substructure
• The Milky Way's bright satellites as an apparent failure of LCDM
• The Radial Acceleration Relation in Rotationally Supported Galaxies
• Gaia Data Release 2: Kinematics of globular clusters and dwarf galaxies around the Milky Way
• Reconciling dwarf galaxies with LCDM cosmology: Simulating a realistic population of satellites around a Milky Way-mass galaxy
• The APOSTLE simulations: solutions to the Local Group's cosmic puzzles
• Subhaloes in Self-Interacting Galactic Dark Matter Haloes
• Dark Matter Halos as Particle Colliders: A Unified Solution to Small-Scale Structure Puzzles from Dwarfs to Clusters
• Cosmological Simulations with Self-Interacting Dark Matter II: Halo Shapes vs. Observations
• The unexpected diversity of dwarf galaxy rotation curves
• Constraining Self-Interacting Dark Matter with the Milky Way's dwarf spheroidals
• The Tidal Evolution of Local Group Dwarf Spheroidals
• The Structural Evolution of Substructure
• Halo Properties in Cosmological Simulations of Self-Interacting Cold Dark Matter
• Not so lumpy after all: modeling the depletion of dark matter subhalos by Milky Way-like galaxies
• Why Baryons Matter: The Kinematics of Dwarf Spheroidal Satellites
• Core Formation in Dwarf Halos with Self Interacting Dark Matter: No Fine-Tuning Necessary
• Galaxies in LCDM with Halo Abundance Matching: luminosity-velocity relation, baryonic mass-velocity relation, velocity function and clustering
• How the Self-Interacting Dark Matter Model Explains the Diverse Galactic Rotation Curves
• The impact of dark matter cusps and cores on the satellite galaxy population around spiral galaxies
• ETHOS - An Effective Theory of Structure Formation: Dark matter physics as a possible explanation of the small-scale CDM problems
• Gaia DR2 Proper Motions of Dwarf Galaxies within 420 kpc: Orbits, Milky Way Mass, Tidal Influences, Planar Alignments, and Group Infall
• Dwarf galaxies in CDM and SIDM with baryons: observational probes of the nature of dark matter
• Dark matter heats up in dwarf galaxies
• Self-Interacting Dark Matter Halos and the Gravothermal Catastrophe
• Substructure depletion in the Milky Way halo by the disk
• Can Feedback Solve the Too Big to Fail Problem?
• The Star Formation & Chemical Evolution History of the Fornax Dwarf Spheroidal Galaxy
• Tying Dark Matter to Baryons with Self-interactions
• Spreading out and staying sharp - Creating diverse rotation curves via baryonic and self-interaction effects
• The case for a cold dark matter cusp in Draco
• Observable tests of self-interacting dark matter in galaxy clusters: cosmological simulations with SIDM and baryons
• Constraining Dissipative Dark Matter Self-Interactions
• Infall Times for Milky Way Satellites From Their Present-Day Kinematics
• Reconciling the Diversity and Uniformity of Galactic Rotation Curves with Self-Interacting Dark Matter
• Accelerated core collapse in tidally stripped self-interacting dark matter halos
• Too Big To Fail in Light of Gaia
• A Testable Conspiracy: Simulating Baryonic Effects on Self-Interacting Dark Matter Halos
• The diverse density profiles of galaxy clusters with self-interacting dark matter plus baryons
• Evaporating the Milky Way halo and its satellites with inelastic self-interacting dark matter
• Dark Matter Cores and Cusps in Spiral Galaxies and their Explanations
• Diversity in density profiles of self-interacting dark matter satellite halos
• The impact of baryonic discs on the shapes and profiles of self-interacting dark matter halos
• Dwarf Galaxies in CDM, WDM, and SIDM: Disentangling Baryons and Dark Matter Physics
• Dark matter self-interactions from the internal dynamics of dwarf spheroidals
• The Milky Way's Halo and Subhalos in Self-Interacting Dark Matter
• The cold dark matter content of Galactic dwarf spheroidals: no cores, no failures, no problem
• Characterizing the Infall Times and Quenching Timescales of Milky Way Satellites with $Gaia$ Proper Motions
• Pushing down the low-mass halo concentration frontier with the Lomonosov cosmological simulations

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• Constraining Velocity-dependent Self-Interacting Dark Matter with the Milky Way's dwarf spheroidal galaxies
• Strong lensing signatures of self-interacting dark matter in low-mass halos
• Dark Matter Cores and Cusps in Spiral Galaxies and their Explanations
• Signatures of Self-Interacting dark matter on cluster density profile and subhalo distributions
• An unexpected high concentration for the dark substructure in the gravitational lens SDSSJ0946+1006
• Seeding Supermassive Black Holes with Self-Interacting Dark Matter: A Unified Scenario with Baryons
• Core-collapse, evaporation and tidal effects: the life story of a self-interacting dark matter subhalo
• The Onset of Gravothermal Core Collapse in Velocity Dependent Self-Interacting Dark Matter Subhaloes
• The surprising accuracy of isothermal Jeans modelling of self-interacting dark matter density profiles
• Signatures of Velocity-Dependent Dark Matter Self-Interactions in Milky Way-mass Halos
• Gravothermal evolution of dark matter halos with differential elastic scattering
• A Self-interacting Dark Matter Solution to the Extreme Diversity of Low-mass Halo Properties
• Strong Dark Matter Self-interactions Diversify Halo Populations within and surrounding the Milky Way
• Self-Interacting Dark Matter and Small-Scale Gravitational Lenses in Galaxy Clusters
• The central densities of Milky Way-mass galaxies in cold and self-interacting dark matter models
• Self-Interacting Dark Matter and the Origin of Ultra-Diffuse Galaxies NGC1052-DF2 and -DF4
• Constraining resonant dark matter self-interactions with strong gravitational lenses
• Motivations for a Large Self-Interacting Dark Matter Cross Section from Milky Way Satellites
• Dissipative Dark Matter on FIRE: I. Structural and kinematic properties of dwarf galaxies
• TangoSIDM: Tantalizing models of Self-Interacting Dark Matter
• The Odd Dark Matter Halos of Isolated Gas-rich Ultradiffuse Galaxies
• A Practical and Consistent Parametrization of Dark Matter Self-Interactions
• The Structure of Dissipative Dark Matter Halos
• Probing Dark Matter Self-interaction with Ultra-faint Dwarf Galaxies
• Dark matter halo cores and the tidal survival of Milky Way satellites
• Degeneracies Between Self-interacting Dark Matter and Supernova Feedback as cusp-core transformation mechanisms
• The impact of baryonic potentials on the gravothermal evolution of self-interacting dark matter haloes
• Constraining SIDM with halo shapes: revisited predictions from realistic simulations of early-type galaxies
• Maximally self-interacting dark matter: models and predictions
• A Parametric Model for Self-Interacting Dark Matter Halos
• Cusp or core? Revisiting the globular cluster timing problem in Fornax
• Finite-size dark matter and its effect on small-scale structure
• Dynamical Instability of Collapsed Dark Matter Halos
• Shapes of Milky-Way-Mass Galaxies with Self-Interacting Dark Matter
• Endothermic self-interacting dark matter in Milky Way-like dark matter haloes
• Testing the Relationship Between Bursty Star Formation and Size Fluctuations of Local Dwarf Galaxies
• Self-interacting Dark Scalar Spikes around Black Holes via Relativistic Bondi Accretion
• Astrophysical Tests of Dark Matter Self-Interactions
• Self-interacting dark matter interpretation of Crater II
• Constraining Self-Interacting Dark Matter with Dwarf Spheroidal Galaxies and High-resolution Cosmological $N$-body Simulations
• Density spikes near black holes in self-interacting dark matter halos and indirect detection constraints
• From dwarf galaxies to galaxy clusters: Self-Interacting Dark Matter over 7 orders of magnitude in halo mass
• The cusp-core problem in gas-poor dwarf spheroidal galaxies
• Dark Stars Powered by Self-Interacting Dark Matter
• Gravothermal collapse of Self-Interacting Dark Matter halos as the Origin of Intermediate Mass Black Holes in Milky Way satellites
• HSTPROMO Internal Proper Motion Kinematics of Dwarf Spheroidal Galaxies: I. Velocity Anisotropy and Dark Matter Cusp Slope of Draco
• Gravothermal collapse and the diversity of galactic rotation curves
• Properties and observables of massive galaxies in self-interacting dark matter cosmologies
• X-ray morphology of cluster-mass haloes in self-interacting dark matter
• SIDM Concerto: Compilation and Data Release of Self-interacting Dark Matter Zoom-in Simulations
• Exploring Self-Interacting Dark Matter Halos with Diverse Baryonic Distributions: A Parametric Approach
• SASHIMI-SIDM: Semi-analytical subhalo modelling for self-interacting dark matter at sub-galactic scales
• The local dark matter distribution in self-interacting dark matter halos
• Gravothermal Catastrophe in Resonant Self-interacting Dark Matter Models
• Self-Interacting Dark Matter from Gravitational Scattering
• Anisotropic strong lensing as a probe of dark matter self-interactions
• Modelling self-interacting dark matter substructures I: Calibration with N-body simulations of a Milky-Way-sized halo and its satellite
• Gravothermalizing into primordial black holes, boson stars, and cannibal stars
• The imprint of dark matter on the Galactic acceleration field
• COZMIC. III. Cosmological Zoom-in Simulations of Self-interacting Dark Matter with Suppressed Initial Conditions
• Central densities of dark matter halos in FIRE-2 simulations of low-mass galaxies with cold dark matter and self-interacting dark matter
• Late-Time Dark Matter Oscillations and the Core-Cusp Problem
• A Universal Analytic Model for Gravitational Lensing by Self-Interacting Dark Matter Halos
• Diversifying halo structures in two-component self-interacting dark matter models via mass segregation
• Core collapse in resonant self-interacting dark matter across two decades in halo mass
• Using Strong Lensing to Detect Subhalos with Steep Inner Density Profiles
• Calibrating the SIDM Gravothermal Catastrophe with N-body Simulations
• Towards a theory of dissipative Dark Matter I: the Born limit