Primordial Black Hole and Gravitational Wave by Peaked Cosmic Perturbations from Axion Curvaton

arXiv:2610.00457 · hep-ph, astro-ph.CO · Submitted 2026-09-30 · Read on arXiv

hep-ph, astro-ph.CO

Submitted: 2026-09-30

Updated: 2026-09-30

Terminology

• Abundance — 36× in this paper · explained in 1 episode
• Non-Gaussianity — 33× in this paper · explained in 2 episodes
• Reheating — 12× in this paper · explained in 2 episodes
• Microlensing — 7× in this paper · explained in 2 episodes
• Benchmark — 4× in this paper · explained in 2 episodes
• pulsar timing arrays — 4× in this paper · explained in 2 episodes
• Primordial non-Gaussianity — 3× in this paper · explained in 2 episodes
• Clustering — 2× in this paper · explained in 2 episodes
• Matter Power Spectrum — 2× in this paper · explained in 2 episodes
• Primordial Black Holes (PBHs) — 2× in this paper · explained in 7 episodes
• 21-cm signal — 1× in this paper · explained in 1 episode
• Alignment — 1× in this paper · explained in 1 episode
• Anti-correlation — 1× in this paper · explained in 3 episodes
• Bispectrum — 1× in this paper · explained in 3 episodes
• Fine-Tuning — 1× in this paper · explained in 5 episodes
• Phase Transitions — 1× in this paper · explained in 2 episodes
• Unified Framework — 1× in this paper · explained in 5 episodes
• alpha — 1× in this paper · explained in 1 episode

Sources

• Planck 2018 results. VI. Cosmological parameters
• Gravitational waves from a curvaton model with blue spectrum
• Gravitational Waves from Stochastic Scalar Fluctuations
• Axion isocurvature fluctuations with extremely blue spectrum
• The NANOGrav 15-year Data Set: Evidence for a Gravitational-Wave Background
• The NANOGrav 15-year Data Set: Observations and Timing of 68 Millisecond Pulsars
• The NANOGrav 15-year Data Set: Search for Signals from New Physics
• Planck Constraint on Relic Primordial Black Holes
• Constraining primordial black holes as dark matter using the global 21-cm signal with X-ray heating and excess radio background
• INTEGRAL constraints on primordial black holes and particle dark matter
• Strong constraints on primordial black hole dark matter from 16 years of INTEGRAL/SPI observations
• Voyager 1 $e^\pm$ Further Constrain Primordial Black Holes as Dark Matter
• Constraining primordial black hole abundance with the Galactic 511 keV line
• New cosmological constraints on primordial black holes
• Microlensing constraints on primordial black holes with the Subaru/HSC Andromeda observation
• Constraints on Earth-mass primordial black holes from OGLE 5-year microlensing events
• Understanding caustic crossings in giant arcs: characteristic scales, event rates, and constraints on compact dark matter
• Searching for blue in the dark
• Axion Curvaton Model for the Gravitational Waves Observed by Pulsar Timing Arrays
• Primordial black hole formation from an axion-like curvaton model

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• 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