Phenomenology of ultralight bosons around compact objects: in-medium suppression

Autor:	Cannizzaro, Enrico, Spieksma, Thomas F. M.
Rok vydání:	2024
Předmět:	High Energy Physics - Phenomenology Astrophysics - High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology
Druh dokumentu:	Working Paper
Popis:	Mixing between ultralight bosons and the Standard Model photon may allow access to the hitherto invisible Universe. In the presence of plasma, photons are dressed with an effective mass which will influence the conversion between the two. We study this phenomenon, known as in-medium suppression, in the context of black hole physics. We consider both axion-photon mixing around charged black holes and dark photon-photon mixing around neutral black holes. We find that the presence of plasma indeed influences the conversion rate, possibly quenching it altogether for large plasma densities, and discuss implications for superradiance and observational signatures. Comment: 12 pages, 5 figures, v2: extra figure, typos corrected; version to appear in Physical Review D
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2406.17016 Zobrazit plný text záznamu View this record from Arxiv