PhD Defense by Zhen Li

Title: The phenomenological study on alternative black holes and dark matter distribution

Abstract: Black holes and dark matter are key subjects in modern physics. Significant progress has been made in black hole research through gravitational waves and imaging, yet alternative black holes beyond general relativity remain possible. Dark matter distribution is studied through simulations, but a predictive theory is lacking. This thesis examines alternative black holes, including rotating regular and hairy black holes, discussing the phenomenology of superradiance, quasinormal modes, and energy extraction via magnetic reconnection. For dark matter, a new phenomenological model is proposed, providing accurate density and velocity profiles, aligning well with simulation data and capturing some universal properties.

Thesis: The phenomenological study on alternative black holes and dark matter distribution

Supervisors:

• Steen Hansen, University of Copenhagen
• Co-supervisor- Adriano Agnello 

Censor/ Assessment Committee:

• Liliya L. R. Williams, University of Minnesota
• Emanuele Berti, Johns Hopkins University

Post Defense Reception to be held at: TBD

Zoom-link for participants whom are not able to attend: