First constraints on Fuzzy Dark Matter from the dynamics of stellar streams in the Milky Way

Abstract

We present a novel method to constrain the mass of ultra-light bosons as the dark matter using stellar streams formed by disrupting Globular Clusters in the Milky Way. The turbulent density field of Fuzzy Dark Matter (FDM) haloes results in perturbations and dynamical heating of thin streams. Using numerical simulations based on an effective model, we explore the magnitude of this phenomenon and show that this is observable for the range of axion masses $m_a$ that is interesting for alleviating the `small-scale problems' of $\Lambda$CDM. We derive an analytical model for the thickening of thin stellar streams and obtain an early conservative lower limit for the boson mass of $m_a>1.5\times 10^{-22}$eV, using pre-Gaia literature data for six Milky Way streams and after marginalizing over physical parameters. This demonstrates the great promise for using this novel dynamical method as a fully independent probe of FDM, to complement results based on Lyman-$\alpha$ forest data.

arXiv commentto be submitted, comments welcome

References in corpus (46)

• Gaia Data Release 2. Summary of the contents and survey properties
• Observational evidence for self-interacting cold dark matter
• Axion Cosmology
• The Aquarius Project: the subhalos of galactic halos
• Cold and Fuzzy Dark Matter
• Ultralight scalars as cosmological dark matter
• The Galaxy in Context: Structural, Kinematic and Integrated Properties
• Small-Scale Challenges to the $\Lambda$CDM Paradigm
• Cosmology with Ultra-light Pseudo-Nambu-Goldstone Bosons
• Clumps and streams in the local dark matter distribution
• Concentration, Spin and Shape of Dark Matter Haloes as a Function of the Cosmological Model: WMAP1, WMAP3 and WMAP5 results
• Understanding the Core-Halo Relation of Quantum Wave Dark Matter, $\psi$DM, from 3D Simulations
• Cold dark matter: controversies on small scales
• First constraints on fuzzy dark matter from Lyman-$\alpha$ forest data and hydrodynamical simulations
• A search for ultra-light axions using precision cosmological data
• Late time Cosmological Phase Transition and Galactic Halo as Bose-liquid
• Fluid Dark Matter
• Repulsive Dark Matter
• Detection of a 63 Degree Cold Stellar Stream in the Sloan Digital Sky Survey
• The Mass-Concentration-Redshift Relation of Cold and Warm Dark Matter Halos
• Constraining the mass of light bosonic dark matter using SDSS Lyman-$\alpha$ forest
• Axion dark matter, solitons, and the cusp-core problem
• Galactic Halos As Boson Stars
• Uncovering CDM halo substructure with tidal streams
• Lyman-alpha Constraints on Ultralight Scalar Dark Matter: Implications for the Early and Late Universe
• Cosmological Constraints on Bose-Einstein-Condensed Scalar Field Dark Matter
• Dark Matter from an ultra-light pseudo-Goldsone-boson
• Ultra-Light Scalar Fields and the Growth of Structure in the Universe
• Using the Full Power of the Cosmic Microwave Background to Probe Axion Dark Matter
• The number and size of subhalo-induced gaps in stellar streams
• Scalar Field as Dark Matter in the Universe
• Dark Matter Sub-Halo Counts via Star Stream Crossings
• A sharper view of Pal 5's tails: Discovery of stream perturbations with a novel non-parametric technique
• On the Schrodinger-Poisson--Vlasov-Poisson correspondence
• Jeans Analysis for Dwarf Spheroidal Galaxies in Wave Dark Matter
• Linear perturbation theory for tidal streams and the small-scale CDM power spectrum
• Evolution of star clusters in arbitrary tidal fields
• Shaken and Stirred: The Milky Way's Dark Substructures
• Unbiased constraints on ultralight axion mass from dwarf spheroidal galaxies
• Gaps in globular cluster streams: giant molecular clouds can cause them too
• On feathers, bifurcations and shells: the dynamics of tidal streams across the mass scale
• Probing the nature of dark matter particles with stellar streams
• Stray, swing and scatter: angular momentum evolution of orbits and streams in aspherical potentials
• Shepherding Tidal Debris with the Galactic Bar: The Ophiuchus Stream
• Serendipitous Discovery of a Thin Stellar Stream near the Galactic Bulge in the Pan-STARRS1 3Pi Survey
• The Nature and Orbit of the Ophiuchus Stream

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• Wave Dark Matter
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• Galaxy Formation with BECDM -- II. Cosmic Filaments and First Galaxies
• Looking for ultralight dark matter near supermassive black holes
• Heating of Milky Way disc Stars by Dark Matter Fluctuations in Cold Dark Matter and Fuzzy Dark Matter Paradigms
• Fuzzy Dark Matter Soliton Cores around Supermassive Black Holes
• Ultra-light dark matter in disk galaxies
• Cooling of Dark-Matter Admixed Neutron Stars with density-dependent Equation of State
• Cosmological Simulation for Fuzzy Dark Matter Model
• The effect of fluctuating fuzzy axion haloes on stellar dynamics: a stochastic model
• What is the Halo Mass Function in a Fuzzy Dark Matter Cosmology?
• Cosmological structure formation in scalar field dark matter with repulsive self-interaction: The Incredible Shrinking Jeans Mass
• Velocity Dispersion of the GD-1 Stellar Stream
• Two-Scalar Bose-Einstein Condensates: From Stars to Galaxies
• Ejection of supermassive black holes and implications for merger rates in fuzzy dark matter haloes
• Minimum star-forming halo mass in axion cosmology
• Non-sphericity of ultralight axion dark matter haloes in the Galactic dwarf spheroidal galaxies
• Axial Anomaly in Galaxies and the Dark Universe
• One-Dimensional Fuzzy Dark Matter Models: Structure Growth and Asymptotic Dynamics
• Stellar streams and dark substructure: the diffusion regime
• Nearest neighbour analysis as a new probe for fuzzy dark matter
• To observe, or not to observe, quantum-coherent dark matter in the Milky Way, that is a question