Shock Revival in Core-collapse Supernovae Assisted by Heavy Axion-like Particles

Abstract

Axion-like particles (ALPs) are a class of hypothetical pseudoscalar particles which feebly interact with ordinary matter. The hot plasma of core-collapse supernovae is a possible laboratory to explore physics beyond the standard model including ALPs. Once produced, some of the ALPs can be absorbed by the supernova matter and affect energy transfer. In this study, we calculate the ALP emission in core-collapse supernovae and the backreaction on supernova dynamics consistently. It is found that the stalled bounce shock can be revived if the coupling between ALPs and photons is as high as g_{ag}~10^{-9} GeV^{-1} and the ALP mass is 40-400 MeV. Most of the models result in more energetic explosions than the average observed supernova. While this can be used to place constraints on those ALPs, long-term simulations across multiple progenitors need to be further investigated to place robust limits.

10 pages, 6 figures, accepted for publication in PRD

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• Axion Astrophysics
• Low-luminosity type IIP supernovae: SN 2005cs and SN 2020cxd as very low-energy iron core-collapse explosions
• Axion emission from strange matter in core-collapse SNe
• Progenitor Dependence of Neutrino-driven Supernova Explosions with the Aid of Heavy Axion-like Particles
• Light Curves and Event Rates of Axion Instability Supernovae
• Long-term neutrino emission from a core-collapse supernova with axion-photon coupling
• Neutrino Driven Explosions aided by Axion Cooling in Multidimensional Simulations of Core-Collapse Supernovae
• Unveiling axion signals in galactic supernovae with future MeV telescopes