Astrophysical Axion Bounds: The 2024 Edition

Abstract

We review the current status of astrophysical bounds on QCD axions, primarily based on the observational effects of nonstandard energy losses on stars, including black-hole superradiance. Over the past few years, many of the traditional arguments have been reexamined both theoretically and using modern data and new ideas have been put forth. This compact review updates similar Lecture Notes written by one of us in 2006 [Lect. Notes Phys. 741 (2008) 51-71].

Contribution to 1st Training School of the COST Action COSMIC WISPers (CA21106). Matches published version

References in corpus (56)

• The spectrum of isotropic diffuse gamma-ray emission between 100 MeV and 820 GeV
• Discovering the QCD Axion with Black Holes and Gravitational Waves
• Measurements of the Hubble Constant: Tensions in Perspective
• The ACS Survey of Galactic Globular Clusters. I. Overview and Clusters Without Previous HST Photometry
• Rapid Cooling of the Neutron Star in Cassiopeia A Triggered by Neutron Superfluidity in Dense Matter
• Revisiting the bound on axion-photon coupling from Globular Clusters
• The effects of He I 10830 on helium abundance determinations
• Revisiting the SN1987A gamma-ray limit on ultralight axion-like particles
• The Expansion Asymmetry and Age of the Cassiopeia A Supernova Remnant
• Search for New Physics in Electronic Recoil Data from XENONnT
• The Diffuse Supernova Neutrino Background
• Physics potential of the International Axion Observatory (IAXO)
• Observational constraints on the origin of the elements. IV: The standard composition of the Sun
• Probing eV-scale axions with CAST
• Redefining the Axion Window
• Ultra Light Boson Dark Matter and Event Horizon Telescope Observations of M87*
• Axions and the cooling of white dwarf stars
• Limits on Axion Couplings from the first 80-day data of PandaX-II Experiment
• Supernova Bounds on the Dark Photon Using its Electromagnetic Decay
• Constraining the Axion-Photon Coupling with Massive Stars
• A Telescope Search for Decaying Relic Axions
• High angular resolution ALMA images of dust and molecules in the SN 1987A ejecta
• The brightness of the Red Giant Branch tip: Theoretical framework, a set of reference models, and predicted observables
• Discovery of the radio and X-ray counterpart of TeV Gamma-ray source HESS J1731-347
• A systematic study of proto-neutron star convection in three-dimensional core-collapse supernova simulations
• Search for Solar Axions Produced in $p(d,{}^3\mathrm{He})\mathrm{A}$ Reaction with Borexino Detector
• Thermal QCD Axions across Thresholds
• Superradiance in stars
• Proto-neutron star evolution with improved charged-current neutrino-nucleon interactions
• Diffusive nuclear burning in cooling simulations and application to new temperature data of the Cassiopeia A neutron star
• Equations of state for hot neutron stars -- II. The role of exotic particle degrees of freedom
• Emission lines due to ionizing radiation from a compact object in the remnant of Supernova 1987A
• The DFSZ axion in the CMB
• Superfluid phases of triplet pairing and rapid cooling of the neutron star in Cassiopeia A
• Axion Production in Pulsar Magnetosphere Gaps
• Supernova bounds on axion-like particles coupled with nucleons and electrons
• Unified approach to structure factors and neutrino processes in nucleon matter
• White dwarfs as Physics laboratories: lights and shadows
• XSPEC model for testing the Kerr black hole hypothesis using the continuum-fitting method
• 511 keV line constraints on feebly interacting particles from supernovae
• Properties of gamma-ray decay lines in 3D core-collapse supernova models, with application to SN 1987A and Cas A
• Probing The Local Environment of the Supernova Remnant HESS J1731-347 with CO and CS Observations
• Ultralight Bosonic Field Mass Bounds from Astrophysical Black Hole Spin
• Can decaying particle explain cosmic infrared background excess?
• Atomic Form Factors and Inverse Primakoff Scattering of Axion
• We need lab experiments to look for axion-like particles
• DFSZ-Type Axions and Where to Find Them
• Prospects for the detection of the Diffuse Supernova Neutrino Background with the experiments SK-Gd and JUNO
• Axion emission from nuclear magnetic dipole transitions
• A brief history of the pion-nucleon coupling constant
• Diffuse Axion Background
• Tip of the Red Giant Branch Bounds on the Neutrino Magnetic Dipole Moment Revisited
• Heavy neutron stars from light scalars
• Hunting Dark Matter Lines in the Infrared Background with the James Webb Space Telescope
• Sensitivity of JWST to eV-Scale Decaying Axion Dark Matter
• Fundamental Symmetries, Neutrons, and Neutrinos (FSNN): Whitepaper for the 2023 NSAC Long Range Plan

Cited by in corpus (15)

• Axion-photon conversion in transient compact stars: Systematics, constraints, and opportunities
• Sub-keV dark matter can strongly ionize molecular clouds
• Stacking the Deck: Gambling on a Light QCD Axion
• High Reheating Temperature without Axion Domain Walls
• Probing the Axion-Nucleon Coupling with Supergiant Stars
• A Continuous Galactic Line Source of Axions: The Remarkable Case of 23Na
• Fresh look at the diffuse ALP background from supernovae
• Nucleosynthesis and CMB bounds on photophilic ALPs: a fresh look
• Axions at the meV Crossroads: Theory, Cosmology, Astrophysics, and Experiments
• An Interpretable AI Framework to Disentangle Self-Interacting and Cold Dark Matter in Galaxy Clusters: The CKAN Approach
• Probing ALP-portal fermionic dark matter at the $e^{+}{e}^{-}$ colliders
• Searching for long-lived axion-like particles via displaced vertices at the HL-LHC
• Echoes in multi-ALP scenarios
• Axion-like particle constraints from preSN in future experiments
• Search for New Physics via Low-Energy Electron Recoils with a 4.2 Tonne\times Year Exposure from the LZ Experiment