Degeneracies Between Self-interacting Dark Matter and Supernova Feedback as cusp-core transformation mechanisms

Abstract

We present a suite of 16 high-resolution hydrodynamic simulations of an isolated dwarf galaxy (gaseous and stellar disk plus a stellar bulge) within an initially cuspy dark matter (DM) halo, including self-interactions between the DM particles (SIDM); as well as stochastic star formation and subsequent supernova feedback (SNF), implemented using the stellar feedback model SMUGGLE. The simulations start from identical initial conditions and we regulate the strength of SIDM and SNF by systematically varying the SIDM momentum transfer cross section and the gas density threshold for star formation. The DM halo forms a constant density core of similar size and shape for several combinations of those two parameters. Haloes with cores that are formed due to SIDM (adiabatic cusp-core transformation) have velocity dispersion profiles which are closer to isothermal than those of haloes with cores that are formed due to SNF in simulations with bursty star formation (impulsive cusp-core transformation). Impulsive SNF can generate positive stellar age gradients and increase random motion in the gas at the centre of the galaxy. Simulated galaxies in haloes with cores that were formed adiabatically are spatially more extended, with stellar metallicity gradients that are shallower (at late times) than those of galaxies in other simulations. Such observable properties of the gas and the stars, which indicate either an adiabatic or an impulsive evolution of the gravitational potential, may be used to determine whether observed cores in DM haloes are formed through self-interactions between the DM particles or in response to impulsive SNF.

arXiv commentaccepted for publication in MNRAS, contains 3 appendices; main paper: 18 pages, 11 figures; appendices: 8 pages, 7 figures; for questions/comments contact [email protected] (Jan Burger)

References in corpus (74)

• A Universal Density Profile from Hierarchical Clustering
• The Structure of Cold Dark Matter Halos
• E pur si muove: Galiliean-invariant cosmological hydrodynamical simulations on a moving mesh
• Modeling feedback from stars and black holes in galaxy mergers
• The Average Star Formation Histories of Galaxies in Dark Matter Halos from z=0-8
• Observational evidence for self-interacting cold dark matter
• Small-Scale Challenges to the $\Lambda$CDM Paradigm
• UniverseMachine: The Correlation between Galaxy Growth and Dark Matter Halo Assembly from z=0-10
• Constraints on the relationship between stellar mass and halo mass at low and high redshift
• Dark Matter Self-interactions and Small Scale Structure
• The Inner Structure of LambdaCDM Halos I: A Numerical Convergence Study
• High-Resolution Rotation Curves and Galaxy Mass Models from THINGS
• How supernova feedback turns dark matter cusps into cores
• Modeling Luminosity-Dependent Galaxy Clustering Through Cosmic Time
• The large-scale structure of the Universe
• Cosmological Simulations with Self-Interacting Dark Matter I: Constant Density Cores and Substructure
• A Method for Measuring (Slopes of) the Mass Profiles of Dwarf Spheroidal Galaxies
• 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
• The Star Formation Histories of Local Group Dwarf Galaxies I. Hubble Space Telescope / Wide Field Planetary Camera 2 Observations
• 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
• Cusp-core transformations in dwarf galaxies: observational predictions
• Constraining Self-Interacting Dark Matter with the Milky Way's dwarf spheroidals
• The Galactic disk mass-budget : I. stellar mass-function and density
• Mass loss from dwarf spheroidal galaxies: the origins of shallow dark matter cores and exponential surface brightness profiles
• Halo Properties in Cosmological Simulations of Self-Interacting Cold Dark Matter
• Forged in FIRE: cusps, cores, and baryons in low-mass dwarf galaxies
• 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
• Mass Models for Low Surface Brightness Galaxies with High Resolution Optical Velocity Fields
• Disruption of Dark Matter Substructure: Fact or Fiction?
• Dark matter cores all the way down
• NIHAO IV: Core creation and destruction in dark matter density profiles across cosmic time
• The Structure of the Interstellar Medium of Star Forming Galaxies
• Dark Matter Substructure in Numerical Simulations: A Tale of Discreteness Noise, Runaway Instabilities, and Artificial Disruption
• Weakly Self-Interacting Dark Matter and the Structure of Dark Halos
• Density Profiles of Cold Dark Matter Substructure: Implications for the Missing Satellites Problem
• Universal structure of dark matter haloes over a mass range of 20 orders of magnitude
• FIRE in the Field: Simulating the Threshold of Galaxy Formation
• The coupling between the core/cusp and missing satellite problems
• What does the Bullet Cluster tell us about self-interacting dark matter?
• 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
• Maximum Feedback and Dark Matter Profiles of Dwarf Galaxies
• Can Feedback Solve the Too Big to Fail Problem?
• 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
• Supermassive Black Holes from Ultra-Strongly Self-Interacting Dark Matter
• Simulating the interstellar medium and stellar feedback on a moving mesh: Implementation and isolated galaxies
• Non-circular motions and the diversity of dwarf galaxy rotation curves
• 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
• Structure and Subhalo Population of Halos in a Self-Interacting Dark Matter Cosmology
• Baryon-induced dark matter cores in the EAGLE simulations
• Constraining Velocity-dependent Self-Interacting Dark Matter with the Milky Way's dwarf spheroidal galaxies
• Accelerated core collapse in tidally stripped self-interacting dark matter halos
• Systematics in virial mass estimators for pressure-supported systems
• Baryonic clues to the puzzling diversity of dwarf galaxy rotation curves
• Self-Interacting Dark Matter Subhalos in the Milky Way's Tides
• Faint dwarfs as a test of DM models: WDM vs. CDM
• No cores in dark matter-dominated dwarf galaxies with bursty star formation histories
• The core-cusp problem: a matter of perspective
• Diversity in density profiles of self-interacting dark matter satellite halos
• The diverse dark matter density at sub-kiloparsec scales in Milky Way satellites:implications for the nature of dark matter
• Dark matter self-interactions from the internal dynamics of dwarf spheroidals
• NIHAO -- XXV. Convergence in the cusp-core transformation of cold dark matter haloes at high star formation thresholds
• Mass of the dynamically hot inner stellar halo predicts the ancient accreted stellar mass
• The inner structure of dwarf sized halos in Warm and Cold Dark Matter cosmologies
• Building the Stellar Halo Through Feedback in Dwarf Galaxies
• The nature of core formation in dark matter haloes: adiabatic or impulsive?
• SN-driven mechanism of cusp-core transformation: an appraisal

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