Emission of axions in strongly magnetized stars

1998/03/09 by Deog Ki Hong · 1 citation
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Pulsars and Gravitational Waves Research #hep-ph

paper · pdf · doi:10.1016/s0370-2693(98)01452-x

published as Phys.Lett. B445 (1998) 36-42 · 11 pages, RevTeX, 4 Postscript figures, uses epsf.sty

arxiv created 1998/03/09 · openalex publication_date 1998/12/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We show that the axion decay constant does not get any correction at any order by external magnetic fields. On the other hand, in the context of the Wilsonian effective action under external magnetic fields, the axial currents get a finite correction. We then calculate the effect of strong magnetic fields B>10¹⁸G on the axion-nucleon coupling and find that if B\gtrsim 10²⁰~G in strongly magnetized neutron and white dwarf stars, the emission rate of axions is enhanced by several orders of magnitude.

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