Authors
Damiano F G Fiorillo, Ángel Gil Muyor, Georg G Raffelt, Edoardo Vitagliano
Published in
Physical review letters. Volume 137. Issue 12. Pages 121002. Sep 18, 2026.
Abstract
Magnetic fields between a supernova (SN) and Earth convert axions into gamma rays. The absence of such a signal in coincidence with SN 1987A neutrinos, using the coherent Milky Way field, provides well-studied constraints on g_{ap}×g_{aγ} (axion-proton times axion-photon couplings) and on g_{aγ} alone. We show that the small-scale power of the turbulent magnetic field component boosts axion-photon conversion and, crucially, extends sensitivity to larger masses. The turbulent field components of the Milky Way and of the Large Magellanic Cloud (hosting SN 1987A) yield improvements of up to 2 orders of magnitude in g_{ap}×g_{aγ}. Turbulence should likely impact the sensitivity of other searches based on other axion-photon conversion sites, such as starburst galaxies.
PMID:
42826958
Bibliographic data and abstract were imported from PubMed on 03 Oct 2026.
Read full publication at:
Please sign in
to see all details.
Advertisement
Stats
- Recommendations n/a n/a positive of 0 vote(s)
- Views 31
- Comments 0