Speaker
Takuya Okawa
Description
Owing to its high temperature, a copious number of heavy axion-like particles (ALPs) coupled to the photon field are produced by the Primakoff process and photon coalescence process in the plasma of massive stars in the later stages of their evolution. These heavy axions produced inside stars spontaneously decay into two photons, yielding the possibly detectable photon signal by current and future X-ray and gamma-ray telescopes. We discuss the observability of this photon signal by using the stellar model constructed by the 1D stellar evolution code MESA.
Author
Co-authors
Bhupal Dev
(Washington University in St. Louis)
Francesc Ferrer
(Washington University in St Louis)
James Buckley
(Washington University in St. Louis)
