How Do Magnetic Field Models Affect Astrophysical Limits on Light Axion-like Particles? An X-Ray Case Study with NGC 1275

Axion-like particles (ALPs) are a well-motivated extension to the standard model of particle physics, and X-ray observations of cluster-hosted AGN currently place the most stringent constraints on the ALP coupling to electromagnetism, g a γ , for very light ALPs ( m a ≲ 10 −11 eV). We revisit limits...

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Veröffentlicht in:	The Astrophysical journal 2022-05, Vol.930 (1), p.90
Hauptverfasser:	Matthews, James H., Reynolds, Christopher S., Marsh, M. C. David, Sisk-Reynés, Júlia, Rodman, Payton E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Active galactic nuclei Astronomical models Astrophysics Clusters Coherence length Dark matter Data reduction Electromagnetism Extragalactic magnetic fields Fields (mathematics) Intracluster medium Magnetic fields Modelling Particle astrophysics Particle physics Spectroscopy Spectrum analysis Standard model (particle physics) X ray spectra X-ray active galactic nuclei X-rays
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