Hydrogen Axion Star: Metallic Hydrogen Bound to a QCD Axion BEC
arXiv:1612.00438 · doi:10.1007/JHEP12(2016)127
Abstract
As a cold dark matter candidate, the QCD axion may form Bose-Einstein condensates, called axion stars, with masses around . In this paper, we point out that a brand new astrophysical object, a Hydrogen Axion Star (HAS), may well be formed by ordinary baryonic matter becoming gravitationally bound to an axion star. We study the properties of the HAS and find that the hydrogen cloud has a high pressure and temperature in the center and is likely in the liquid metallic hydrogen state. Because of the high particle number densities for both the axion star and the hydrogen cloud, the feeble interaction between axion and hydrogen can still generate enough internal power, around $10^{13}~\mbox{W}\times(m_a/5~\mbox{meV})^4$, to make these objects luminous point sources. High resolution ultraviolet, optical and infrared telescopes can discover HAS via black-body radiation.
arXiv comment35 pages, 7 figures
References in corpus (66)
- Big-Bang Nucleosynthesis
- String Axiverse
- Cosmic strings
- In the Beginning: The First Sources of Light and the Reionization of the Universe
- The Kinematics of the Ultra-Faint Milky Way Satellites: Solving the Missing Satellite Problem
- WISPy Cold Dark Matter
- A SQUID-based microwave cavity search for dark-matter axions
- Experimental Searches for the Axion and Axion-like Particles
- A comprehensive Maximum Likelihood analysis of the structural properties of faint Milky Way satellites
- Mass-radius relation of Newtonian self-gravitating Bose-Einstein condensates with short-range interactions: I. Analytical results
- Bose-Einstein Condensation of Dark Matter Axions
- Earth-mass dark-matter haloes as the first structures in the early Universe
- Dielectric Haloscopes: A New Way to Detect Axion Dark Matter
- Revisiting the SN1987A gamma-ray limit on ultralight axion-like particles
- Axion Miniclusters and Bose Stars
- Axion Cosmology
- Star Formation Efficiencies and Lifetimes of Giant Molecular Clouds in the Milky Way
- Any Light Particle Search II -- Technical Design Report
- Broadband and Resonant Approaches to Axion Dark Matter Detection
- Bosonic super-WIMPs as keV-scale dark matter
- Cosmic Axion Spin Precession Experiment (CASPEr)
- Axion Cosmology Revisited
- Conceptual Design of the International Axion Observatory (IAXO)
- 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?
- Resonant detection of axion mediated forces with Nuclear Magnetic Resonance
- Dark Matter and Background Light
- New Exclusion Limits for the Search of Scalar and Pseudoscalar Axion-Like Particles from "Light Shining Through a Wall"
- Dark Matter Axions Revisited
- Detecting Superlight Dark Matter with Fermi-Degenerate Materials
- Grand unification and heavy axion
- On the Cosmological Domain Wall Problem for the Minimally Extended Supersymmetric Standard Model
- Relativistic axions from collapsing Bose stars
- Dark Matter Detectors as Dark Photon Helioscopes
- Detecting Ultralight Bosonic Dark Matter via Absorption in Superconductors
- Anomalous solutions to the strong CP problem
- Dense Axion Stars
- Boson Stars from Self-Interacting Dark Matter
- Cosmic axion thermalization
- Astrophysical Effects of Scalar Dark Matter Miniclusters
- WIMP diffusion in the solar system including solar depletion and its effect on Earth capture rates
- CAST constraints on the axion-electron coupling
- Collapse of Axion Stars
- Rotating Drops of Axion Dark Matter
- The Lifetime of Axion Stars
- Topological susceptibility at high temperature on the lattice
- Electroweak Phase Transition in the munuSSM
- Axion Stars in the Infrared Limit
- Miniclusters in the Axiverse
- Dark matter in the solar system III: The distribution function of WIMPs at the Earth from gravitational capture
- Emission of Photons and Relativistic Axions from Axion Stars
- Quantum and Classical Behavior in Interacting Bosonic Systems
- Axion star collisions with Neutron stars and Fast Radio Bursts
- Lecture notes on the formation and early evolution of planetary systems
- Diffuse Background Radiation
- Probing a QCD String Axion with Precision Cosmological Measurements
- Capture of dark matter by the Solar System
- Duration of classicality in highly degenerate interacting Bosonic systems
- Quantum Dew
- Topology in QCD and the axion abundance
- Fast Radio Bursts from Axion Stars
- Comments on recent work on dark-matter capture in the Solar System
- Capture of dark matter by the Solar System. Simple estimates
- Measuring the Interplanetary Medium with a Solar Sail
- Optical properties of inhomogeneous metallic hydrogen plasmas
- Dark matter bound to the Solar System: consequences for annihilation searches
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- Femtolensing by Dark Matter Revisited
- Dilute and dense axion stars
- Early seeds of axion miniclusters
- Structure Formation and Microlensing with Axion Miniclusters
- Phase transitions between dilute and dense axion stars
- Dark stars: gravitational and electromagnetic observables
- Probing the Early Universe with Axion Physics and Gravitational Waves
- Axion Cosmology with Early Matter Domination
- Axion minicluster power spectrum and mass function
- Axion Miniclusters in Modified Cosmological Histories
- Collisions of Dark Matter Axion Stars with Astrophysical Sources
- Detecting Axion Stars with Radio Telescopes
- Tests of Dark MACHOs: Lensing, Accretion, and Glow
- Jeans mass-radius relation of self-gravitating Bose-Einstein condensates and typical parameters of the dark matter particle
- The Fate of Dense Scalar Stars
- QCD -vacuum energy and axion properties
- Towards an Analytic Construction of the Wavefunction of Boson Stars
- QCD Axion Star Collapse with the Chiral Potential
- Effect of the chiral phase transition on axion mass and self-coupling
- Quantum tunneling rate of dilute axion stars close to the maximum mass
- Exploring the axion potential and axion walls in dense quark matter
- Topological susceptibility and axion potential in two-flavor superconductive quark matter
- Diffuse X-Ray and Gamma-Ray Limits on Boson Stars that Interact with Nuclei
- Acoustic modes of pulsating axion stars: Non-radial oscillations
- Axion spectra and the associated x-ray spectra of low-mass stars
- Electromagnetic radiation from axion condensates in a time dependent magnetic field