The central densities of Milky Way-mass galaxies in cold and self-interacting dark matter models

Abstract

We present a suite of baryonic cosmological zoom-in simulations of self-interacting dark matter (SIDM) haloes within the ``Feedback In Realistic Environment'' (FIRE) project. The three simulated haloes have virial masses of $\sim 10^{12}{\text{M}}_{\odot }$ at $z=0$, and we study velocity-independent self-interaction cross sections of 1 and 10 $\mathrm{c}{\mathrm{m}}^2{\mathrm{g}}^{-1}$. We study star formation rates and the shape of dark matter density profiles of the parent haloes in both cold dark matter (CDM) and SIDM models. Galaxies formed in the SIDM haloes have higher star formation rates at $z\le 1$, resulting in more massive galaxies compared to the CDM simulations. While both CDM and SIDM simulations show diverse shape of the dark matter density profiles, the SIDM haloes can reach higher and more steep central densities within few kpcs compared to the CDM haloes. We identify a correlation between the build-up of the stars within the half-mass radii of the galaxies and the growth in the central dark matter densities. The thermalization process in the SIDM haloes is enhanced in the presence of a dense stellar component. Hence, SIDM haloes with highly concentrated baryonic profiles are predicted to have higher central dark matter densities than the CDM haloes. Overall, the SIDM haloes are more responsive to the presence of a massive baryonic distribution than their CDM counterparts.

arXiv comment10 pages, 5 figures. Accepted for publication in MNRAS

References in corpus (81)

• The NumPy array: a structure for efficient numerical computation
• The cosmological simulation code GADGET-2
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
• Observational evidence for self-interacting cold dark matter
• A Theory of Dark Matter
• Small-Scale Challenges to the $\Lambda$CDM Paradigm
• Galaxies on FIRE (Feedback In Realistic Environments): Stellar Feedback Explains Cosmologically Inefficient Star Formation
• The Rockstar Phase-Space Temporal Halo Finder and the Velocity Offsets of Cluster Cores
• Too big to fail? The puzzling darkness of massive Milky Way subhaloes
• Properties of galaxies reproduced by a hydrodynamic simulation
• GIZMO: A New Class of Accurate, Mesh-Free Hydrodynamic Simulation Methods
• FIRE-2 Simulations: Physics versus Numerics in Galaxy Formation
• Dark Matter Self-interactions and Small Scale Structure
• Multi-scale initial conditions for cosmological simulations
• How supernova feedback turns dark matter cusps into cores
• 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
• SPARC: Mass Models for 175 Disk Galaxies with Spitzer Photometry and Accurate Rotation Curves
• A Method for Measuring (Slopes of) the Mass Profiles of Dwarf Spheroidal Galaxies
• Cuspy No More: How Outflows Affect the Central Dark Matter and Baryon Distribution in Lambda CDM Galaxies
• Reconciling dwarf galaxies with LCDM cosmology: Simulating a realistic population of satellites around a Milky Way-mass galaxy
• The Cores of Dwarf Galaxy Halos
• Subhaloes in Self-Interacting Galactic Dark Matter Haloes
• Cosmological Simulations with Self-Interacting Dark Matter II: Halo Shapes vs. Observations
• Beyond Collisionless Dark Matter: Particle Physics Dynamics for Dark Matter Halo Structure
• The dependence of dark matter profiles on the stellar to halo mass ratio: a prediction for cusps vs cores
• The unexpected diversity of dwarf galaxy rotation curves
• Hidden Charged Dark Matter
• Constraining Self-Interacting Dark Matter with the Milky Way's dwarf spheroidals
• Dark Matter and Dark Radiation
• High-resolution mass models of dwarf galaxies from LITTLE THINGS
• Forged in FIRE: cusps, cores, and baryons in low-mass dwarf galaxies
• Cores in Dwarf Galaxies from Dark Matter with a Yukawa Potential
• Stellar Feedback in Dwarf Galaxy Formation
• The Impact of Baryonic Physics on the Structure of Dark Matter Halos: the View from the FIRE Cosmological Simulations
• Can sterile neutrinos be the dark matter?
• Mass Models for Low Surface Brightness Galaxies with High Resolution Optical Velocity Fields
• NIHAO IV: Core creation and destruction in dark matter density profiles across cosmic time
• The shape of the SDSS DR5 galaxy power spectrum
• Breathing FIRE: How Stellar Feedback Drives Radial Migration, Rapid Size Fluctuations, and Population Gradients in Low-Mass Galaxies
• How the Self-Interacting Dark Matter Model Explains the Diverse Galactic Rotation Curves
• ETHOS - An Effective Theory of Structure Formation: Dark matter physics as a possible explanation of the small-scale CDM problems
• Too Big to Fail in the Local Group
• FIRE in the Field: Simulating the Threshold of Galaxy Formation
• The coupling between the core/cusp and missing satellite problems
• 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
• How To Model Supernovae in Simulations of Star and Galaxy Formation
• The Local Group on FIRE: Dwarf galaxy populations across a suite of hydrodynamic simulations
• Tying Dark Matter to Baryons with Self-interactions
• A dark matter profile to model diverse feedback-induced core sizes of $\Lambda$CDM haloes
• Gravothermal collapse of isolated self-interacting dark matter haloes: N-body simulation versus the fluid model
• Spreading out and staying sharp - Creating diverse rotation curves via baryonic and self-interaction effects
• How to Zoom: Bias, Contamination, and Lagrange Volumes in Multimass Cosmological Simulations
• Observable tests of self-interacting dark matter in galaxy clusters: cosmological simulations with SIDM and baryons
• Constraining Dissipative Dark Matter Self-Interactions
• A profile in FIRE: resolving the radial distributions of satellite galaxies in the Local Group with simulations
• Baryon-induced dark matter cores in the EAGLE simulations
• Constraining Velocity-dependent Self-Interacting Dark Matter with the Milky Way's dwarf spheroidal galaxies
• All about baryons: revisiting SIDM predictions at small halo masses
• Reconciling the Diversity and Uniformity of Galactic Rotation Curves with Self-Interacting Dark Matter
• Too Big To Fail in Light of Gaia
• A Testable Conspiracy: Simulating Baryonic Effects on Self-Interacting Dark Matter Halos
• Self-Interacting Dark Matter Subhalos in the Milky Way's Tides
• Formation and Evolution of the Self-Interacting Dark Matter Halos
• No cores in dark matter-dominated dwarf galaxies with bursty star formation histories
• The diverse density profiles of galaxy clusters with self-interacting dark matter plus baryons
• NIHAO XIV: Reproducing the observed diversity of dwarf galaxy rotation curve shapes in LCDM
• The Formation Times and Building Blocks of Milky Way-mass Galaxies in the FIRE Simulations
• 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
• The diverse dark matter density at sub-kiloparsec scales in Milky Way satellites:implications for the nature of dark matter
• The Milky Way's Halo and Subhalos in Self-Interacting Dark Matter
• The interplay of Self-Interacting Dark Matter and baryons in shaping the halo evolution
• ETHOS -- an effective theory of structure formation: predictions for the high-redshift Universe -- abundance of galaxies and reionization
• A rumble in the dark: signatures of self-interacting dark matter in Super-Massive Black Hole dynamics and galaxy density profiles
• The effect of dark matter-dark radiation interactions on halo abundance -- a Press-Schechter approach
• Simulating the "hidden giant" in cold and self-interacting dark matter models

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• Gravothermal evolution of dark matter halos with differential elastic scattering
• Blazar-Boosted Dark Matter at Super-Kamiokande
• 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
• Constraining resonant dark matter self-interactions with strong gravitational lenses
• Motivations for a Large Self-Interacting Dark Matter Cross Section from Milky Way Satellites
• A semi-analytic study of self-interacting dark-matter haloes with baryons
• A Critical Assessment of Solutions to the Galaxy Diversity Problem
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• The impact of baryonic potentials on the gravothermal evolution of self-interacting dark matter haloes
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• Amplified J-factors in the Galactic Center for velocity-dependent darkmatter annihilation in FIRE simulations
• A Parametric Model for Self-Interacting Dark Matter Halos
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• Endothermic self-interacting dark matter in Milky Way-like dark matter haloes
• Cosmological and idealized simulations of dark matter haloes with velocity-dependent, rare and frequent self-interactions
• Astrophysical Tests of Dark Matter Self-Interactions
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• Dark Stars Powered by Self-Interacting Dark Matter
• Testing the parametric model for self-interacting dark matter using matched halos in cosmological simulations
• Comparing Implementations of Self-Interacting Dark Matter in the Gizmo and Arepo Codes
• The local dark matter distribution in self-interacting dark matter halos
• Search for secluded dark matter towards the Galactic Centre with the ANTARES neutrino telescope
• Gamma rays from dark matter spikes in EAGLE simulations
• Trial by FIRE: Probing the dark matter density profile of dwarf galaxies with GraphNPE
• Modelling self-interacting dark matter substructures I: Calibration with N-body simulations of a Milky-Way-sized halo and its satellite
• Orbits and adiabatic contraction in scalar field dark matter halos: revisiting the cusp-core problem in dwarf galaxies
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• Unequal-mass mergers of dark matter haloes with rare and frequent self-interactions
• Cosmological simulations with rare and frequent dark matter self-interactions
• Dark Matter spikes around Sgr A* in $\gamma$-rays
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• Structure Formation under Inelastic Two-Component Dark Matter: Halo Statistics and Matter Power Spectra in the High-$z$ Universe