http://arxiv.org/abs/2304.11360
Core-collapse supernovae are a useful laboratory to probe the nature of exotic particles. If axionlike particles (ALPs) are produced in supernovae, they can affect the transfer of energy and leave traces in observational signatures. In this work, we develop two-dimensional supernova models including the effects of the production and the absorption of ALPs that couple with photons. It is found that the additional heating induced by ALPs can enhance the explosion energy E_exp; for moderate ALP-photon coupling, we find explosion energies ~0.610^51 erg compared to our reference model without ALPs of ~0.410^51 erg. Our findings also indicate that when the coupling constant is sufficiently high, the neutrino luminosities and mean energies are decreased because of the additional cooling of the proto-neutron star. The gravitational wave strain is also reduced because the mass accretion on the proto-neutron star is suppressed. Although the ALP-photon coupling can foster explodability, including enhancing the explosion energy closer to recent observations, more long-term simulations in spatially three-dimension are needed to draw robust conclusions.
K. Mori, T. Takiwaki, K. Kotake, et. al.
Tue, 25 Apr 23
20/72
Comments: 11 pages, 8 figures, submitted to PRD