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arXiv · 1702.02964

Decay photons from the ALP burst of type-II supernovae

J. Jaeckel·P. C. Malta·J. Redondo
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Abstract

We determine limits from SN 1987A on massive axion-like particles (ALPs) with masses in the 10 keV - 100 MeV range and purely coupled to two photons. ALPs produced in the core collapse escape from the star and decay into photons that can be observed as a delayed and diffuse burst. We discuss the time and angular distribution of such a signal. Looking into the future we also estimate the possible improvements if the red supergiant Betelgeuse explodes in a supernova event.

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J. Jaeckel, P. C. Malta, J. Redondo. 2017-02-09. Decay photons from the ALP burst of type-II supernovae. https://doi.org/10.1103/physrevd.98.055032

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