Multi-messenger signal from QCD-Axion Ultracompact Minihalos

arXiv:2608.25338 · hep-ph, astro-ph.CO, astro-ph.HE · Submitted 2026-08-26 · Read on arXiv

hep-ph, astro-ph.CO, astro-ph.HE

Submitted: 2026-08-26

Updated: 2026-08-26

Project page: https://cajohare.github.io/AxionLimits

Terminology

• Core — 63× in this paper · explained in 2 episodes
• Benchmark — 31× in this paper · explained in 2 episodes
• Abundance — 14× in this paper · explained in 1 episode
• Microlensing — 6× in this paper · explained in 2 episodes
• Clustering — 2× in this paper · explained in 2 episodes
• Consistency — 2× in this paper · explained in 3 episodes
• Decoupling — 2× in this paper · explained in 2 episodes
• Primordial Black Holes (PBHs) — 2× in this paper · explained in 7 episodes
• Velocity Dispersion — 2× in this paper · explained in 2 episodes
• Accuracy — 1× in this paper · explained in 1 episode
• Generalization — 1× in this paper · explained in 13 episodes
• Gravitational Wave Emission — 1× in this paper · explained in 2 episodes

Sources

• A New Era in the Quest for Dark Matter
• A History of Dark Matter
• Particle Dark Matter: Evidence, Candidates and Constraints
• A Search for Invisible Axion Dark Matter with the Axion Dark Matter Experiment
• Results from phase 1 of the HAYSTAC microwave cavity axion experiment
• New CAST Limit on the Axion-Photon Interaction
• Indirect detection of the QCD axion
• Resonant conversion of axion dark radiation into terahertz electromagnetic radiation in a neutron star magnetosphere
• Axion Star Explosions: A New Source for Axion Indirect Detection
• PBH assisted search for QCD axion dark matter
• Can QCD Axion Stars explain Subaru HSC microlensing?
• Microlensing constraints on axion stars including finite lens and source size effects
• Radio signatures from encounters between Neutron Stars and QCD-Axion Minihalos around Primordial Black Holes
• Merger of Dark Matter Axion Clumps and Resonant Photon Emission
• Axion Star Nucleation in Dark Minihalos around Primordial Black Holes
• Radio Signal of Axion-Photon Conversion in Neutron Stars: A Ray Tracing Analysis
• The radio telescope search for the resonant conversion of cold dark matter axions from the magnetized astrophysical sources
• Radio Signals from Axion Dark Matter Conversion in Neutron Star Magnetospheres
• Detecting Axion Dark Matter with Radio Lines from Neutron Star Populations
• Axion Stars and Repeating Fast Radio Bursts with Finite Bandwidths

Related papers

• Classification of g-modes for neutron stars with a strong transition: Novel universal relation including slow stable hybrid stars
• Higgsino Dark Matter Interpretation of the LUX-ZEPLIN 248 keV Nuclear-Recoil Event
• A Unified Bogoliubov Approach to Primordial Gravitational Waves: From Inflation to Reheating
• Probing Memory-Burdened Primordial Black Holes with High-Energy Neutrinos
• Enhanced Dark Matter Quantum Sensing via Phase-Space Geometric Interferometry
• Axions as Dark Matter, Dark Energy, and Dark Radiation