Piercing of a boson star by a black hole

Understand

New light fundamental fields are natural candidates for all or a fraction of dark matter.

• Self-gravitating structures of such fields might be common objects in the universe, and could comprise even galactic halos.
• These structures would interact gravitationally with black holes, a process of the utmost importance since it dictates their lifetime, the black hole motion, and possible gravitational radiation emission.
• Here, we study the dynamics of a black hole piercing through a much larger fully relativistic boson star, made of a complex minimally coupled massive scalar without self-interactions.