Particle Astrophysics
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Turbulent Magnetic Fields Tighten Axion Constraints by Up to Two Orders of Magnitude
Prior constraints on axion couplings from SN 1987A used only the coherent (large-scale) component of the Milky Way magnetic field for axion-to-photon conversion. This paper shows that incorporating small-scale turbulent magnetic field components — from both the Milky Way and the Large Magellanic Clo…