Galactic Condensates composed of Multiple Axion Species

Abstract

Ultralight scalar dark matter has been proposed to constitute a component of dark matter, though the minimal scenarios have increasingly become constrained. In this work, we analyze scenarios where the dark matter consists of more than one ultralight boson, each with different masses. This potentially leads to formation of gravitationally-bound Bose-Einstein condensates with structures that are very different from condensates composed of a single scalar field. By generalizing from the well-understood single-flavor case, we explore a large range of input parameters, subject to stability criteria, and determine the allowed parameter space for two-flavor condensates as a function of particle physics parameters, paying particular attention to cases where such condensates could compose galactic cores. We also analyze single-flavor condensates subject to external gravity from massive inner bodies and find that such systems may mimic the size of galactic cores as well.

arXiv comment31 pages, 7 figures. v2: revisions to figures and discussion

References in corpus (47)

• String Axiverse
• Cold and Fuzzy Dark Matter
• Ultralight scalars as cosmological dark matter
• Cosmic Structure as the Quantum Interference of a Coherent Dark Wave
• SPARC: Mass Models for 175 Disk Galaxies with Spitzer Photometry and Accurate Rotation Curves
• Understanding the Core-Halo Relation of Quantum Wave Dark Matter, $\psi$DM, from 3D Simulations
• Can dark matter be a Bose-Einstein condensate?
• 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-$\alpha$ forest data and hydrodynamical simulations
• Late time Cosmological Phase Transition and Galactic Halo as Bose-liquid
• 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 Clockwork Axion
• Mass-radius relation of Newtonian self-gravitating Bose-Einstein condensates with short-range interactions: II. Numerical results
• Axion dark matter, solitons, and the cusp-core problem
• A Model For Halo Formation With Axion Mixed Dark Matter
• Cosmological Constraints on Bose-Einstein-Condensed Scalar Field Dark Matter
• Dark Matter from an ultra-light pseudo-Goldsone-boson
• Galactic Rotation Curves vs. Ultra-Light Dark Matter: Implications of the Soliton -- Host Halo Relation
• Relaxion Stars and their detection via Atomic Physics
• Collapse of a self-gravitating Bose-Einstein condensate with attractive self-interaction
• The Subhalo Mass Function and Ultralight Bosonic Dark Matter
• Cosmological particle-in-cell simulations with ultralight axion dark matter
• Collapse of Axion Stars
• Looking for ultralight dark matter near supermassive black holes
• Dark Matter Cores and Cusps in Spiral Galaxies and their Explanations
• Ultra-light dark matter in disk galaxies
• Brief History of Ultra-light Scalar Dark Matter Models
• The MASSIVE Survey - VIII. Stellar Velocity Dispersion Profiles and Environmental Dependence of Early-Type Galaxies
• Can Light Dark Matter Solve the Core-Cusp Problem?
• Relativistic Corrections to Nonrelativistic Effective Field Theories
• Axion Stars in the Infrared Limit
• Testing extreme-axion wave dark matter using the BOSS Lyman-Alpha forest data
• Gravitational Waves as a New Probe of Bose-Einstein Condensate Dark Matter
• Ghostly Galaxies as Solitons of Bose-Einstein Dark Matter
• Multiple Ultralight Axionic Wave Dark Matter and Astronomical Structures
• Evidences against cuspy dark matter halos in large galaxies
• Implications of Milky Way Substructures for the Nature of Dark Matter
• Classical Nonrelativistic Effective Field Theory and the Role of Gravitational Interactions
• On Approximation Methods in the Study of Boson Stars
• Nonrelativistic Effective Field Theory for Axions
• Classical Nonrelativistic Effective Field Theories for a Real Scalar Field
• Expansion in Higher Harmonics of Boson Stars using a Generalized Ruffini-Bonazzola Approach, Part 1: Bound States
• Stability of Condensed Fuzzy Dark Matter Halos

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• Two-Scalar Bose-Einstein Condensates: From Stars to Galaxies
• Cosmological Simulations of Two-Component Wave Dark Matter
• Nested solitons in two-field fuzzy dark matter
• Testing multiflavored ULDM models with SPARC
• Implications of multi-axion dark matter on structure formation
• Diverse dark matter haloes in Two-field Fuzzy Dark Matter
• Using atomic clocks to detect local dark matter halos
• Core and Halo Properties in Multi-Field Wave Dark Matter
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