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hep-ph2025
Gravitational waves from the Axiverse
Saurav Das, Francesc Ferrer
Models with axion like particles (ALPs) often predict the formation of a string-domain wall network in the early universe. We study how such networks of defects appear in the conte…
hep-ph2024
Probing Heavy Axion-like Particles from Massive Stars with X-rays and Gamma Rays
James H. Buckley, P. S. Bhupal Dev, Francesc Ferrer +1
The hot interiors of massive stars in the later stages of their evolution provide an ideal place for the production of heavy axion-like particles (ALPs) with mass up to O(100 keV)…
hep-ph2023
On the Galactic radio signal from stimulated decay of axion dark matter
P. S. Bhupal Dev, Francesc Ferrer, Takuya Okawa
We study the full-sky distribution of the radio emission from the stimulated decay of axions which are assumed to compose the dark matter in the Galaxy. Besides the constant extrag…