Axion-like Particles Implications for High-Energy Astrophysics

Abstract

We offer a pedagogical introduction to axion-like particles (ALPs) as far as their relevance for high-energy astrophysics is concerned, from a few MeV to 1000 TeV. This review is self-contained, in such a way to be understandable even to non-specialists. Among other things, we discuss two strong hints at a specific ALP that emerge from two very different astrophysical situations. More technical matters are contained in three Appendices.

arXiv comment77 pages, 33 figures. Invited Review paper published in Universe, 8, 253 (2022)

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• Parameters of axion-like particles required to explain high-energy photons from GRB 221009A
• Constraints on axion-like particles with the Perseus Galaxy Cluster with MAGIC
• Primordial Black Holes from Axion Domain Wall Collapse
• Fermion Proca Stars: Vector Dark Matter Admixed Neutron Stars
• ALP induced polarization effects on photons from galaxy clusters
• Constraining axion-like particles with the diffuse gamma-ray flux measured by the Large High Altitude Air Shower Observatory
• Photon-ALP oscillations inducing modifications to photon polarization
• Towards a model of photon-axion conversion in the host galaxy of GRB 221009A
• Electroweak axion in light of GRB221009A
• Axion-like Particle Effects on Photon Polarization in High-Energy Astrophysics
• Primordial black holes induced stochastic axion-photon oscillations in primordial magnetic field
• Observational constraint on axion dark matter in a realistic halo profile with gravitational waves
• Physics Beyond the Standard Model with Future X-ray Observatories: Projected Constraints on Very-Light Axion-Like Particles with $Athena$ and $AXIS$
• Axion effects on gamma-ray spectral irregularities with AGN redshift uncertainty
• Exploring Axion-Like Particle Couplings through Single Top $tW$-Channel and Top Pair Production at the LHC
• Observational constraint on axion dark matter with gravitational waves
• Stellar evolution and axion-like particles: new constraints and hints from globular clusters in the GAIA DR3 data
• Magnetic fields in inhomogeneous axion stars
• Sensitivities to New Resonance Couplings to $W$-Bosons at the LHC
• Constraints on Axion-Like Particles from VERITAS Observations of a Flaring Radio Galaxy in the Perseus Cluster
• Testing new-physics scenarios with the combined LHAASO and Carpet-3 fluence spectrum of GRB 221009A: axion-like particles and Lorentz-invariance violation
• Distinct photon-ALP propagation modes
• X-ray polarimetric features of Gamma-ray Bursts across varied redshifts and hints for Axion-Like-Particles
• Projected sensitivity of CTAO to axion-like particles from blazars with a machine learning approach