19–21 Feb 2019
"Sapienza" University, Phys. Dept. Marconi
Europe/Rome timezone

Electromagnetic emission from axionic clouds

20 Feb 2019, 18:08
1m
I Floor (Phys. Dept. Marconi)

I Floor

Phys. Dept. Marconi

poster General Relativity and Cosmology Poster session

Speaker

Taishi Ikeda (Instituto Superior Técnico)

Description

Although the existence of dark matter (DM) has been shown through various observations, nobody knows the identity of the DM. Axions were firstly introduced to solve the strong CP problem, and one of the possible candidate of DM.
Due to the super-radiance instability, axion cloud is formed around Kerr BHs.
Recently, it was suggested that once coupling to photons is considered, the laser of photons is emitted from the cloud through the coupling.
In this talk, we solve numerically the Axion-Maxwell system, and confirm the existence of laser-like emission from clouds.

Primary authors

Taishi Ikeda (Instituto Superior Técnico) Mr Boskovic Mateja Dr Brito Richard Prof. Cardoso Vitor Dr Witek Helvi

Presentation materials

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