Stability of Condensed Fuzzy Dark Matter Halos
arXiv:1805.12147 · doi:10.1088/1475-7516/2018/10/058
Abstract
Stability properties of gravitationally bound condensates composed of ultralight axionic Fuzzy Dark Matter (FDM) are studied. Previous work has shown that astrophysical collisions could make self-gravitating condensates structurally unstable, making them prone to collapse and decay; in the context of FDM, we reexamine the relevant timescales using the time-dependent variational method. We show that FDM condensates can be made unstable through gravitational interactions with central black holes, for black hole masses in a phenomenologically relevant range. Instability could also be stimulated by galaxy collisions. The subsequent decay takes place over a period lasting as long as many thousands of years. We also discuss the possible relevance of FDM condensates to understanding the composition of Ultracompact Dwarf (UCD) Galaxies. Future observation of extremely massive black holes in the central regions of UCDs can constrain this interpretation.
arXiv comment21 pages, 5 figures. To be published in JCAP. v2: References added, discussion modified in Sections 2 and 3. Extended discussion in Section 2 (compared to JCAP version)
References in corpus (75)
- Gaia Data Release 2. Summary of the contents and survey properties
- Axion Cosmology
- Cold and Fuzzy Dark Matter
- Monitoring stellar orbits around the Massive Black Hole in the Galactic Center
- Ultralight scalars as cosmological dark matter
- Cosmic Structure as the Quantum Interference of a Coherent Dark Wave
- Dynamics of collapsing and exploding Bose-Einstein condensates
- Understanding the Core-Halo Relation of Quantum Wave Dark Matter, DM, from 3D Simulations
- Mass-radius relation of Newtonian self-gravitating Bose-Einstein condensates with short-range interactions: I. Analytical results
- Cold dark matter: controversies on small scales
- First constraints on fuzzy dark matter from Lyman- forest data and hydrodynamical simulations
- Bose-Einstein Condensation of Dark Matter Axions
- Late time Cosmological Phase Transition and Galactic Halo as Bose-liquid
- Axion Miniclusters and Bose Stars
- Fluid Dark Matter
- Repulsive Dark Matter
- Galaxy Formation with BECDM: I. Turbulence and relaxation of idealised haloes
- Simulations of solitonic core mergers in ultra-light axion dark matter cosmologies
- A class of compact dwarf galaxies from disruptive processes in galaxy clusters
- Mass-radius relation of Newtonian self-gravitating Bose-Einstein condensates with short-range interactions: II. Numerical results
- Do Dark Matter Axions Form a Condensate with Long-Range Correlation?
- Gravitational Bose-Einstein condensation in the kinetic regime
- Compact Stellar Systems in the Fornax Cluster: Super-massive Star Clusters or Extremely Compact Dwarf Galaxies?
- HST STIS spectroscopy of the triple nucleus of M31: two nested disks in Keplerian rotation around a Supermassive Black Hole
- The central region of the Fornax cluster -- II. Spectroscopy and radial velocities of member and background galaxies
- Near Infrared Spectroscopy of High Redshift Active Galactic Nuclei. I. A Metallicity-Accretion Rate Relationship
- Dilute and dense axion stars
- Galaxy threshing and the origin of ultra-compact dwarf galaxies in the Fornax cluster
- Cosmological Constraints on Bose-Einstein-Condensed Scalar Field Dark Matter
- Dark Matter from an ultra-light pseudo-Goldsone-boson
- Relativistic axions from collapsing Bose stars
- Quantum Radiation of Oscillons
- Dense Axion Stars
- The large-scale modulation of the density distribution in standard axionic CDM and its cosmological and physical impact
- Ultra-Light Dark Matter in Ultra-Faint Dwarf Galaxies
- Black hole formation from axion stars
- Fast Radio Bursts and Axion Miniclusters
- Phase transitions between dilute and dense axion stars
- Collapse of a self-gravitating Bose-Einstein condensate with attractive self-interaction
- Fornax compact object survey FCOS: On the nature of Ultra Compact Dwarf galaxies
- Macroscopic Quantum Tunneling of a Bose Condensate
- Cosmological particle-in-cell simulations with ultralight axion dark matter
- Self-gravitating system made of axions
- Analysis of Dark Matter Axion Clumps with Spherical Symmetry
- Collapse of Axion Stars
- Detection of Supermassive Black Holes in Two Virgo Ultracompact Dwarf Galaxies
- The core-cusp problem: a matter of perspective
- The impact of ultra-light axion self-interactions on the large scale structure of the Universe
- On Longevity of I-ball/Oscillon
- Tidal disruption of fuzzy dark matter subhalo cores
- Brief History of Ultra-light Scalar Dark Matter Models
- The Lifetime of Axion Stars
- A 3.5-million Solar Masses Black Hole in the Centre of the Ultracompact Dwarf Galaxy Fornax UCD3
- Can Light Dark Matter Solve the Core-Cusp Problem?
- The Need for Speed: Escape velocity and dynamical mass measurements of the Andromeda galaxy
- Axion Cosmology with Early Matter Domination
- Relativistic Corrections to Nonrelativistic Effective Field Theories
- Axion Stars in the Infrared Limit
- Collisional interactions between self-interacting non-relativistic boson stars: effective potential analysis and numerical simulations
- Collisions of Dark Matter Axion Stars with Astrophysical Sources
- Scalar Dark Matter Clumps with Angular Momentum
- On Profiles of Boson Stars with Self-Interactions
- Towards an Analytic Construction of the Wavefunction of Boson Stars
- Decay of Ultralight Axion Condensates
- Relativistic collapse of axion stars
- QCD Axion Star Collapse with the Chiral Potential
- Can the dark matter halo be a collisionless ensemble of axion stars?
- Hiding in plain sight: record-breaking compact stellar systems in the Sloan Digital Sky Survey
- Expansion in Higher Harmonics of Boson Stars using a Generalized Ruffini-Bonazzola Approach, Part 1: Bound States
- Axionic Boson Stars in Magnetized Conducting Media
- Gravitationally Bound Bose Condensates with Rotation
- Collapse of a Bose Condensate with Attractive Interactions
- Supermassive Black Holes from self-gravitating Bose-Einstein Condensates comprised of Ultra-light Bosonic Dark Matter
- Macroscopic quantum tunneling of Bose-Einstein condensates with long-range interaction
- Backreaction of axion coherent oscillations
Cited by in corpus (12)
- Strong Constraints on Fuzzy Dark Matter from Ultrafaint Dwarf Galaxy Eridanus II
- Constraining the photon coupling of ultra-light dark-matter axion-like particles by polarization variations of parsec-scale jets in active galaxies
- Boson Star from Repulsive Light Scalars and Gravitational Waves
- On Approximation Methods in the Study of Boson Stars
- Jeans mass-radius relation of self-gravitating Bose-Einstein condensates and typical parameters of the dark matter particle
- Axion core - halo mass and the black hole - halo mass relation: constraints on a few parsec scales
- Galactic Condensates composed of Multiple Axion Species
- Core mass -- halo mass relation of bosonic and fermionic dark matter halos harbouring a supermassive black hole
- Quantum tunneling rate of dilute axion stars close to the maximum mass
- Global View of Axion Stars with (Nearly) Planck-Scale Decay Constants
- Nonlinear Klein-Gordon equation and the Bose-Einstein condensation
- Oscillating scalar field as dark matter through the cosmological epochs